49999659 has 8 divisors (see below), whose sum is σ = 70175040. Its totient is φ = 31578696.

The previous prime is 49999643. The next prime is 49999667. The reversal of 49999659 is 95699994.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 49999659 - 2⁴ = 49999643 is a prime.

It is not an unprimeable number, because it can be changed into a prime (49999619) 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, 438537 + ... + 438650.

It is an arithmetic number, because the mean of its divisors is an integer number (8771880).

Almost surely, 2^49999659 is an apocalyptic number.

49999659 is a deficient number, since it is larger than the sum of its proper divisors (20175381).

49999659 is a wasteful number, since it uses less digits than its factorization.

49999659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 877209.

The product of its digits is 7085880, while the sum is 60.

The square root of 49999659 is about 7071.0436994831. The cubic root of 49999659 is about 368.4023123590.

The spelling of 49999659 in words is "forty-nine million, nine hundred ninety-nine thousand, six hundred fifty-nine".