74729651 has 8 divisors (see below), whose sum is σ = 76003200. Its totient is φ = 73465920.

The previous prime is 74729621. The next prime is 74729713. The reversal of 74729651 is 15692747.

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

It is a cyclic number.

It is not a de Polignac number, because 74729651 - 2¹⁴ = 74713267 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 74729599 and 74729608.

It is not an unprimeable number, because it can be changed into a prime (74729621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13790 + ... + 18428.

It is an arithmetic number, because the mean of its divisors is an integer number (9500400).

Almost surely, 2^74729651 is an apocalyptic number.

74729651 is a deficient number, since it is larger than the sum of its proper divisors (1273549).

74729651 is a wasteful number, since it uses less digits than its factorization.

74729651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4909.

The product of its digits is 105840, while the sum is 41.

The square root of 74729651 is about 8644.6313397391. The cubic root of 74729651 is about 421.2090088582.

The spelling of 74729651 in words is "seventy-four million, seven hundred twenty-nine thousand, six hundred fifty-one".