74638711 has 12 divisors (see below), whose sum is σ = 87177168. Its totient is φ = 63716352.

The previous prime is 74638709. The next prime is 74638723. The reversal of 74638711 is 11783647.

It is not a de Polignac number, because 74638711 - 2¹ = 74638709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74638511) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9630 + ... + 15556.

It is an arithmetic number, because the mean of its divisors is an integer number (7264764).

Almost surely, 2^74638711 is an apocalyptic number.

74638711 is a deficient number, since it is larger than the sum of its proper divisors (12538457).

74638711 is a wasteful number, since it uses less digits than its factorization.

74638711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6198 (or 6191 counting only the distinct ones).

The product of its digits is 28224, while the sum is 37.

The square root of 74638711 is about 8639.3698265556. The cubic root of 74638711 is about 421.0380802945.

The spelling of 74638711 in words is "seventy-four million, six hundred thirty-eight thousand, seven hundred eleven".