49987717 has 16 divisors (see below), whose sum is σ = 57996288. Its totient is φ = 42704640.

The previous prime is 49987711. The next prime is 49987739. The reversal of 49987717 is 71778994.

It is a cyclic number.

It is not a de Polignac number, because 49987717 - 2⁷ = 49987589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49987711) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6573 + ... + 11965.

It is an arithmetic number, because the mean of its divisors is an integer number (3624768).

Almost surely, 2^49987717 is an apocalyptic number.

It is an amenable number.

49987717 is a deficient number, since it is larger than the sum of its proper divisors (8008571).

49987717 is a wasteful number, since it uses less digits than its factorization.

49987717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5460.

The product of its digits is 889056, while the sum is 52.

The square root of 49987717 is about 7070.1992192583. The cubic root of 49987717 is about 368.3729800875.

The spelling of 49987717 in words is "forty-nine million, nine hundred eighty-seven thousand, seven hundred seventeen".