49971786 has 24 divisors (see below), whose sum is σ = 105485184. Its totient is φ = 15779880.

The previous prime is 49971773. The next prime is 49971811. The reversal of 49971786 is 68717994.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9370 + ... + 13701.

It is an arithmetic number, because the mean of its divisors is an integer number (4395216).

Almost surely, 2^49971786 is an apocalyptic number.

49971786 is an abundant number, since it is smaller than the sum of its proper divisors (55513398).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

49971786 is a wasteful number, since it uses less digits than its factorization.

49971786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23114 (or 23095 counting only the distinct ones).

The product of its digits is 762048, while the sum is 51.

The square root of 49971786 is about 7069.0724992746. The cubic root of 49971786 is about 368.3338426497. Note that the first 3 decimals are identical.

The spelling of 49971786 in words is "forty-nine million, nine hundred seventy-one thousand, seven hundred eighty-six".