74471031 has 6 divisors (see below), whose sum is σ = 107569280. Its totient is φ = 49647348.

The previous prime is 74471027. The next prime is 74471041. The reversal of 74471031 is 13017447.

It is not a de Polignac number, because 74471031 - 2² = 74471027 is a prime.

It is a super-2 number, since 2×74471031² = 11091868916405922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 74470986 and 74471004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74471041) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4137271 + ... + 4137288.

Almost surely, 2^74471031 is an apocalyptic number.

74471031 is a deficient number, since it is larger than the sum of its proper divisors (33098249).

74471031 is a wasteful number, since it uses less digits than its factorization.

74471031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8274565 (or 8274562 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 74471031 is about 8629.6599585383. The cubic root of 74471031 is about 420.7225487644.

Adding to 74471031 its reverse (13017447), we get a palindrome (87488478).

The spelling of 74471031 in words is "seventy-four million, four hundred seventy-one thousand, thirty-one".