49078931 has 6 divisors (see below), whose sum is σ = 53946396. Its totient is φ = 44617100.

The previous prime is 49078903. The next prime is 49078969. The reversal of 49078931 is 13987094.

It is a happy number.

It is not a de Polignac number, because 49078931 - 2¹⁰ = 49077907 is a prime.

It is a super-2 number, since 2×49078931² = 4817482936205522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49075931) 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, 202685 + ... + 202926.

It is an arithmetic number, because the mean of its divisors is an integer number (8991066).

Almost surely, 2^49078931 is an apocalyptic number.

49078931 is a deficient number, since it is larger than the sum of its proper divisors (4867465).

49078931 is a wasteful number, since it uses less digits than its factorization.

49078931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405633 (or 405622 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 49078931 is about 7005.6356599526. The cubic root of 49078931 is about 366.1269503970.

The spelling of 49078931 in words is "forty-nine million, seventy-eight thousand, nine hundred thirty-one".