49997900 has 18 divisors (see below), whose sum is σ = 108495660. Its totient is φ = 19999120.

The previous prime is 49997897. The next prime is 49997903. The reversal of 49997900 is 979994.

It is an interprime number because it is at equal distance from previous prime (49997897) and next prime (49997903).

It is not an unprimeable number, because it can be changed into a prime (49997903) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 249890 + ... + 250089.

Almost surely, 2^49997900 is an apocalyptic number.

It is an amenable number.

49997900 is an abundant number, since it is smaller than the sum of its proper divisors (58497760).

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

49997900 is a wasteful number, since it uses less digits than its factorization.

49997900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499993 (or 499986 counting only the distinct ones).

The product of its (nonzero) digits is 183708, while the sum is 47.

The square root of 49997900 is about 7070.9193178822. The cubic root of 49997900 is about 368.3979921477.

The spelling of 49997900 in words is "forty-nine million, nine hundred ninety-seven thousand, nine hundred".