49272979 has 8 divisors (see below), whose sum is σ = 57461600. Its totient is φ = 42233688.

The previous prime is 49272973. The next prime is 49272983. The reversal of 49272979 is 97927294.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-49272979 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is not an unprimeable number, because it can be changed into a prime (49272973) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71484 + ... + 72169.

It is an arithmetic number, because the mean of its divisors is an integer number (7182700).

Almost surely, 2^49272979 is an apocalyptic number.

49272979 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

49272979 is a deficient number, since it is larger than the sum of its proper divisors (8188621).

49272979 is an equidigital number, since it uses as much as digits as its factorization.

49272979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143674 (or 143660 counting only the distinct ones).

The product of its digits is 571536, while the sum is 49.

The square root of 49272979 is about 7019.4714188463. The cubic root of 49272979 is about 366.6088460708.

The spelling of 49272979 in words is "forty-nine million, two hundred seventy-two thousand, nine hundred seventy-nine".