49072931 has 4 divisors (see below), whose sum is σ = 51959592. Its totient is φ = 46186272.

The previous prime is 49072913. The next prime is 49072937. The reversal of 49072931 is 13927094.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 49072931 - 2¹⁰ = 49071907 is a prime.

It is a super-2 number, since 2×49072931² = 4816305113861522, 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 = 49072891 and 49072900.

It is not an unprimeable number, because it can be changed into a prime (49072937) 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, 1443305 + ... + 1443338.

It is an arithmetic number, because the mean of its divisors is an integer number (12989898).

Almost surely, 2^49072931 is an apocalyptic number.

49072931 is a deficient number, since it is larger than the sum of its proper divisors (2886661).

49072931 is a wasteful number, since it uses less digits than its factorization.

49072931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2886660.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 49072931 is about 7005.2074201982. The cubic root of 49072931 is about 366.1120298654.

The spelling of 49072931 in words is "forty-nine million, seventy-two thousand, nine hundred thirty-one".