74387885 has 48 divisors (see below), whose sum is σ = 108148608. Its totient is φ = 48672000.

The previous prime is 74387881. The next prime is 74387897. The reversal of 74387885 is 58878347.

It is not a de Polignac number, because 74387885 - 2² = 74387881 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 (74387881) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 492560 + ... + 492710.

It is an arithmetic number, because the mean of its divisors is an integer number (2253096).

Almost surely, 2^74387885 is an apocalyptic number.

It is an amenable number.

74387885 is a deficient number, since it is larger than the sum of its proper divisors (33760723).

74387885 is a wasteful number, since it uses less digits than its factorization.

74387885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246 (or 233 counting only the distinct ones).

The product of its digits is 1505280, while the sum is 50.

The square root of 74387885 is about 8624.8411579576. The cubic root of 74387885 is about 420.5659132538.

The spelling of 74387885 in words is "seventy-four million, three hundred eighty-seven thousand, eight hundred eighty-five".