49997631 has 8 divisors (see below), whose sum is σ = 66742704. Its totient is φ = 33292160.

The previous prime is 49997617. The next prime is 49997687. The reversal of 49997631 is 13679994.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 49997631 - 2⁶ = 49997567 is a prime.

It is a super-2 number, since 2×49997631² = 4999526211224322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49996631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6816 + ... + 12101.

It is an arithmetic number, because the mean of its divisors is an integer number (8342838).

Almost surely, 2^49997631 is an apocalyptic number.

49997631 is a deficient number, since it is larger than the sum of its proper divisors (16745073).

49997631 is a wasteful number, since it uses less digits than its factorization.

49997631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19801.

The product of its digits is 367416, while the sum is 48.

The square root of 49997631 is about 7070.9002962848. The cubic root of 49997631 is about 368.3973314584.

The spelling of 49997631 in words is "forty-nine million, nine hundred ninety-seven thousand, six hundred thirty-one".