49720797 has 20 divisors (see below), whose sum is σ = 84885856. Its totient is φ = 28411560.

The previous prime is 49720789. The next prime is 49720831. The reversal of 49720797 is 79702794.

It is a happy number.

It is not a de Polignac number, because 49720797 - 2³ = 49720789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49720757) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 43279 + ... + 44412.

Almost surely, 2^49720797 is an apocalyptic number.

It is an amenable number.

49720797 is a deficient number, since it is larger than the sum of its proper divisors (35165059).

49720797 is an equidigital number, since it uses as much as digits as its factorization.

49720797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87710 (or 87701 counting only the distinct ones).

The product of its (nonzero) digits is 222264, while the sum is 45.

The square root of 49720797 is about 7051.2975401695. The cubic root of 49720797 is about 367.7161410757.

The spelling of 49720797 in words is "forty-nine million, seven hundred twenty thousand, seven hundred ninety-seven".