74739790 has 8 divisors (see below), whose sum is σ = 134531640. Its totient is φ = 29895912.

The previous prime is 74739781. The next prime is 74739799. The reversal of 74739790 is 9793747.

It is an interprime number because it is at equal distance from previous prime (74739781) and next prime (74739799).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 74739790.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74739799) 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, 3736980 + ... + 3736999.

It is an arithmetic number, because the mean of its divisors is an integer number (16816455).

Almost surely, 2^74739790 is an apocalyptic number.

74739790 is a deficient number, since it is larger than the sum of its proper divisors (59791850).

74739790 is a wasteful number, since it uses less digits than its factorization.

74739790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7473986.

The product of its (nonzero) digits is 333396, while the sum is 46.

The square root of 74739790 is about 8645.2177531859. The cubic root of 74739790 is about 421.2280572767.

The spelling of 74739790 in words is "seventy-four million, seven hundred thirty-nine thousand, seven hundred ninety".