49719657 has 16 divisors (see below), whose sum is σ = 71519168. Its totient is φ = 30542400.

The previous prime is 49719641. The next prime is 49719673. The reversal of 49719657 is 75691794.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (49719641) and next prime (49719673).

It is not a de Polignac number, because 49719657 - 2⁴ = 49719641 is a prime.

It is a super-4 number, since 4×49719657⁴ (a number of 32 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49719457) 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, 40383 + ... + 41595.

It is an arithmetic number, because the mean of its divisors is an integer number (4469948).

Almost surely, 2^49719657 is an apocalyptic number.

It is an amenable number.

49719657 is a deficient number, since it is larger than the sum of its proper divisors (21799511).

49719657 is a wasteful number, since it uses less digits than its factorization.

49719657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2280.

The product of its digits is 476280, while the sum is 48.

The square root of 49719657 is about 7051.2167035200. The cubic root of 49719657 is about 367.7133307184.

The spelling of 49719657 in words is "forty-nine million, seven hundred nineteen thousand, six hundred fifty-seven".