49623681 has 16 divisors (see below), whose sum is σ = 67832064. Its totient is φ = 32254464.

The previous prime is 49623671. The next prime is 49623689. The reversal of 49623681 is 18632694.

It is not a de Polignac number, because 49623681 - 2¹⁵ = 49590913 is a prime.

It is a super-2 number, since 2×49623681² = 4925019431979522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (49623689) 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, 49275 + ... + 50271.

It is an arithmetic number, because the mean of its divisors is an integer number (4239504).

Almost surely, 2^49623681 is an apocalyptic number.

It is an amenable number.

49623681 is a deficient number, since it is larger than the sum of its proper divisors (18208383).

49623681 is a wasteful number, since it uses less digits than its factorization.

49623681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1400.

The product of its digits is 62208, while the sum is 39.

The square root of 49623681 is about 7044.4077820637. The cubic root of 49623681 is about 367.4765740077.

The spelling of 49623681 in words is "forty-nine million, six hundred twenty-three thousand, six hundred eighty-one".