49980691 has 12 divisors (see below), whose sum is σ = 51739128. Its totient is φ = 48271104.

The previous prime is 49980683. The next prime is 49980703. The reversal of 49980691 is 19608994.

It is not a de Polignac number, because 49980691 - 2³ = 49980683 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49980991) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 442251 + ... + 442363.

It is an arithmetic number, because the mean of its divisors is an integer number (4311594).

Almost surely, 2^49980691 is an apocalyptic number.

49980691 is a deficient number, since it is larger than the sum of its proper divisors (1758437).

49980691 is an equidigital number, since it uses as much as digits as its factorization.

49980691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342 (or 269 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 46.

The square root of 49980691 is about 7069.7023275383. The cubic root of 49980691 is about 368.3557204486.

The spelling of 49980691 in words is "forty-nine million, nine hundred eighty thousand, six hundred ninety-one".