49621864 has 8 divisors (see below), whose sum is σ = 93041010. Its totient is φ = 24810928.

The previous prime is 49621841. The next prime is 49621877. The reversal of 49621864 is 46812694.

It can be written as a sum of positive squares in only one way, i.e., 41499364 + 8122500 = 6442^2 + 2850^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3101359 + ... + 3101374.

Almost surely, 2^49621864 is an apocalyptic number.

It is an amenable number.

49621864 is a deficient number, since it is larger than the sum of its proper divisors (43419146).

49621864 is a wasteful number, since it uses less digits than its factorization.

49621864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6202739 (or 6202735 counting only the distinct ones).

The product of its digits is 82944, while the sum is 40.

The square root of 49621864 is about 7044.2788133350. The cubic root of 49621864 is about 367.4720888300.

The spelling of 49621864 in words is "forty-nine million, six hundred twenty-one thousand, eight hundred sixty-four".