74908261 has 4 divisors (see below), whose sum is σ = 74945452. Its totient is φ = 74871072.

The previous prime is 74908259. The next prime is 74908291. The reversal of 74908261 is 16280947.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16280947 = 383 ⋅42509.

It can be written as a sum of positive squares in 2 ways, for example, as 7257636 + 67650625 = 2694^2 + 8225^2 .

It is a cyclic number.

It is not a de Polignac number, because 74908261 - 2¹ = 74908259 is a prime.

It is a super-2 number, since 2×74908261² = 11222495132088242, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 74908261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74908291) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15390 + ... + 19663.

It is an arithmetic number, because the mean of its divisors is an integer number (18736363).

Almost surely, 2^74908261 is an apocalyptic number.

It is an amenable number.

74908261 is a deficient number, since it is larger than the sum of its proper divisors (37191).

74908261 is a wasteful number, since it uses less digits than its factorization.

74908261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37190.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 74908261 is about 8654.9558635501. The cubic root of 74908261 is about 421.5443165641.

It can be divided in two parts, 7490 and 8261, that added together give a palindrome (15751).

The spelling of 74908261 in words is "seventy-four million, nine hundred eight thousand, two hundred sixty-one".