74138697 has 24 divisors (see below), whose sum is σ = 109437120. Its totient is φ = 48353760.

The previous prime is 74138689. The next prime is 74138699. The reversal of 74138697 is 79683147.

It is not a de Polignac number, because 74138697 - 2³ = 74138689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (74138699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 99954 + ... + 100692.

It is an arithmetic number, because the mean of its divisors is an integer number (4559880).

Almost surely, 2^74138697 is an apocalyptic number.

It is an amenable number.

74138697 is a deficient number, since it is larger than the sum of its proper divisors (35298423).

74138697 is a wasteful number, since it uses less digits than its factorization.

74138697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 973 (or 970 counting only the distinct ones).

The product of its digits is 254016, while the sum is 45.

The square root of 74138697 is about 8610.3830925227. The cubic root of 74138697 is about 420.0957774768.

It can be divided in two parts, 7413 and 8697, that added together give a triangular number (16110 = T₁₇₉).

The spelling of 74138697 in words is "seventy-four million, one hundred thirty-eight thousand, six hundred ninety-seven".