49999739 has 2 divisors, whose sum is σ = 49999740. Its totient is φ = 49999738.

The previous prime is 49999711. The next prime is 49999751. The reversal of 49999739 is 93799994.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 49999739 - 2²⁴ = 33222523 is a prime.

It is not a weakly prime, because it can be changed into another prime (49999759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24999869 + 24999870.

It is an arithmetic number, because the mean of its divisors is an integer number (24999870).

Almost surely, 2^49999739 is an apocalyptic number.

49999739 is a deficient number, since it is larger than the sum of its proper divisors (1).

49999739 is an equidigital number, since it uses as much as digits as its factorization.

49999739 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4960116, while the sum is 59.

The square root of 49999739 is about 7071.0493563544. The cubic root of 49999739 is about 368.4025088414.

The spelling of 49999739 in words is "forty-nine million, nine hundred ninety-nine thousand, seven hundred thirty-nine".