49872691 has 6 divisors (see below), whose sum is σ = 54818876. Its totient is φ = 45338700.

The previous prime is 49872661. The next prime is 49872737. The reversal of 49872691 is 19627894.

It is a de Polignac number, because none of the positive numbers 2^k-49872691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49872631) 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, 205965 + ... + 206206.

Almost surely, 2^49872691 is an apocalyptic number.

49872691 is a deficient number, since it is larger than the sum of its proper divisors (4946185).

49872691 is a wasteful number, since it uses less digits than its factorization.

49872691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412193 (or 412182 counting only the distinct ones).

The product of its digits is 217728, while the sum is 46.

The square root of 49872691 is about 7062.0599685927. The cubic root of 49872691 is about 368.0902105362.

The spelling of 49872691 in words is "forty-nine million, eight hundred seventy-two thousand, six hundred ninety-one".