74880031 has 4 divisors (see below), whose sum is σ = 74898000. Its totient is φ = 74862064.

The previous prime is 74880017. The next prime is 74880067. The reversal of 74880031 is 13008847.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13008847 = 2797 ⋅4651.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74880031 is a prime.

It is a super-2 number, since 2×74880031² = 11214038085121922, 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 = 74879975 and 74880002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74880131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 870 + ... + 12268.

It is an arithmetic number, because the mean of its divisors is an integer number (18724500).

Almost surely, 2^74880031 is an apocalyptic number.

74880031 is a deficient number, since it is larger than the sum of its proper divisors (17969).

74880031 is a wasteful number, since it uses less digits than its factorization.

74880031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17968.

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 74880031 is about 8653.3248523328. The cubic root of 74880031 is about 421.4913553770.

Adding to 74880031 its reverse (13008847), we get a palindrome (87888878).

The spelling of 74880031 in words is "seventy-four million, eight hundred eighty thousand, thirty-one".