74030861 has 4 divisors (see below), whose sum is σ = 74127900. Its totient is φ = 73933824.

The previous prime is 74030849. The next prime is 74030863. The reversal of 74030861 is 16803047.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16803047 = 691 ⋅24317.

It can be written as a sum of positive squares in 2 ways, for example, as 57668836 + 16362025 = 7594^2 + 4045^2 .

It is a cyclic number.

It is not a de Polignac number, because 74030861 - 2⁶ = 74030797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74030863) 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, 47366 + ... + 48903.

It is an arithmetic number, because the mean of its divisors is an integer number (18531975).

Almost surely, 2^74030861 is an apocalyptic number.

It is an amenable number.

74030861 is a deficient number, since it is larger than the sum of its proper divisors (97039).

74030861 is an equidigital number, since it uses as much as digits as its factorization.

74030861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97038.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 74030861 is about 8604.1188392537. The cubic root of 74030861 is about 419.8919998197.

The spelling of 74030861 in words is "seventy-four million, thirty thousand, eight hundred sixty-one".