74772851 has 8 divisors (see below), whose sum is σ = 79521120. Its totient is φ = 70063488.

The previous prime is 74772811. The next prime is 74772937. The reversal of 74772851 is 15827747.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74772851 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 74772799 and 74772808.

It is not an unprimeable number, because it can be changed into a prime (74772811) 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, 5711 + ... + 13496.

It is an arithmetic number, because the mean of its divisors is an integer number (9940140).

Almost surely, 2^74772851 is an apocalyptic number.

74772851 is a deficient number, since it is larger than the sum of its proper divisors (4748269).

74772851 is a wasteful number, since it uses less digits than its factorization.

74772851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19453.

The product of its digits is 109760, while the sum is 41.

The square root of 74772851 is about 8647.1296393659. The cubic root of 74772851 is about 421.2901579235.

The spelling of 74772851 in words is "seventy-four million, seven hundred seventy-two thousand, eight hundred fifty-one".