74698739 has 4 divisors (see below), whose sum is σ = 75236280. Its totient is φ = 74161200.

The previous prime is 74698721. The next prime is 74698753. The reversal of 74698739 is 93789647.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 74698739 - 2⁸ = 74698483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74691739) 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, 268562 + ... + 268839.

It is an arithmetic number, because the mean of its divisors is an integer number (18809070).

Almost surely, 2^74698739 is an apocalyptic number.

74698739 is a deficient number, since it is larger than the sum of its proper divisors (537541).

74698739 is a wasteful number, since it uses less digits than its factorization.

74698739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537540.

The product of its digits is 2286144, while the sum is 53.

The square root of 74698739 is about 8642.8432243099. The cubic root of 74698739 is about 421.1509229961.

The spelling of 74698739 in words is "seventy-four million, six hundred ninety-eight thousand, seven hundred thirty-nine".