74711638 has 8 divisors (see below), whose sum is σ = 112104288. Its totient is φ = 37343544.

The previous prime is 74711603. The next prime is 74711647. The reversal of 74711638 is 83611747.

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

It is a junction number, because it is equal to n+sod(n) for n = 74711597 and 74711606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7795 + ... + 14497.

It is an arithmetic number, because the mean of its divisors is an integer number (14013036).

Almost surely, 2^74711638 is an apocalyptic number.

74711638 is a deficient number, since it is larger than the sum of its proper divisors (37392650).

74711638 is a wasteful number, since it uses less digits than its factorization.

74711638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12278.

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

The square root of 74711638 is about 8643.5894164404. The cubic root of 74711638 is about 421.1751630889.

The spelling of 74711638 in words is "seventy-four million, seven hundred eleven thousand, six hundred thirty-eight".