49497739 has 2 divisors, whose sum is σ = 49497740. Its totient is φ = 49497738.

The previous prime is 49497733. The next prime is 49497757. The reversal of 49497739 is 93779494.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 49497739 - 2⁷ = 49497611 is a prime.

It is a super-2 number, since 2×49497739² = 4900052332224242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (49497733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24748869 + 24748870.

It is an arithmetic number, because the mean of its divisors is an integer number (24748870).

Almost surely, 2^49497739 is an apocalyptic number.

49497739 is a deficient number, since it is larger than the sum of its proper divisors (1).

49497739 is an equidigital number, since it uses as much as digits as its factorization.

49497739 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1714608, while the sum is 52.

The square root of 49497739 is about 7035.4629556270. The cubic root of 49497739 is about 367.1654326222.

The spelling of 49497739 in words is "forty-nine million, four hundred ninety-seven thousand, seven hundred thirty-nine".