49997170 has 64 divisors (see below), whose sum is σ = 104820480. Its totient is φ = 17031168.

The previous prime is 49997161. The next prime is 49997201. The reversal of 49997170 is 7179994.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a self number, because there is not a number n which added to its sum of digits gives 49997170.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 73954 + ... + 74626.

It is an arithmetic number, because the mean of its divisors is an integer number (1637820).

Almost surely, 2^49997170 is an apocalyptic number.

49997170 is an abundant number, since it is smaller than the sum of its proper divisors (54823310).

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

49997170 is a wasteful number, since it uses less digits than its factorization.

49997170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 739.

The product of its (nonzero) digits is 142884, while the sum is 46.

The square root of 49997170 is about 7070.8676978147. The cubic root of 49997170 is about 368.3961991935.

The spelling of 49997170 in words is "forty-nine million, nine hundred ninety-seven thousand, one hundred seventy".