74720811 has 8 divisors (see below), whose sum is σ = 108684864. Its totient is φ = 45285320.

The previous prime is 74720803. The next prime is 74720827. The reversal of 74720811 is 11802747.

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 74720811 - 2³ = 74720803 is a prime.

It is not an unprimeable number, because it can be changed into a prime (74720311) 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, 1132101 + ... + 1132166.

It is an arithmetic number, because the mean of its divisors is an integer number (13585608).

Almost surely, 2^74720811 is an apocalyptic number.

74720811 is a deficient number, since it is larger than the sum of its proper divisors (33964053).

74720811 is a wasteful number, since it uses less digits than its factorization.

74720811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2264281.

The product of its (nonzero) digits is 3136, while the sum is 30.

The square root of 74720811 is about 8644.1200246179. The cubic root of 74720811 is about 421.1923995007.

The spelling of 74720811 in words is "seventy-four million, seven hundred twenty thousand, eight hundred eleven".