74477953 has 4 divisors (see below), whose sum is σ = 81248688. Its totient is φ = 67707220.

The previous prime is 74477947. The next prime is 74477957. The reversal of 74477953 is 35977447.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 74477953 - 2²¹ = 72380801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74477957) 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, 3385351 + ... + 3385372.

It is an arithmetic number, because the mean of its divisors is an integer number (20312172).

Almost surely, 2^74477953 is an apocalyptic number.

It is an amenable number.

74477953 is a deficient number, since it is larger than the sum of its proper divisors (6770735).

74477953 is a wasteful number, since it uses less digits than its factorization.

74477953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6770734.

The product of its digits is 740880, while the sum is 46.

The square root of 74477953 is about 8630.0610078956. The cubic root of 74477953 is about 420.7355835925.

It can be divided in two parts, 7447 and 7953, that added together give a triangular number (15400 = T₁₇₅).

The spelling of 74477953 in words is "seventy-four million, four hundred seventy-seven thousand, nine hundred fifty-three".