74746745 has 16 divisors (see below), whose sum is σ = 91151760. Its totient is φ = 58834944.

The previous prime is 74746723. The next prime is 74746753. The reversal of 74746745 is 54764747.

It can be written as a sum of positive squares in 8 ways, for example, as 425104 + 74321641 = 652^2 + 8621^2 .

It is a cyclic number.

It is not a de Polignac number, because 74746745 - 2⁶ = 74746681 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 74746696 and 74746705.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110729 + ... + 111401.

It is an arithmetic number, because the mean of its divisors is an integer number (5696985).

Almost surely, 2^74746745 is an apocalyptic number.

It is an amenable number.

74746745 is a deficient number, since it is larger than the sum of its proper divisors (16405015).

74746745 is a wasteful number, since it uses less digits than its factorization.

74746745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1004.

The product of its digits is 658560, while the sum is 44.

The square root of 74746745 is about 8645.6199893356. The cubic root of 74746745 is about 421.2411228307.

The spelling of 74746745 in words is "seventy-four million, seven hundred forty-six thousand, seven hundred forty-five".