49999399 has 8 divisors (see below), whose sum is σ = 51641280. Its totient is φ = 48381696.

The previous prime is 49999387. The next prime is 49999403. The reversal of 49999399 is 99399994.

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

It is a cyclic number.

It is not a de Polignac number, because 49999399 - 2¹¹ = 49997351 is a prime.

It is a super-2 number, since 2×49999399² = 4999879800722402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49999349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1794 + ... + 10159.

It is an arithmetic number, because the mean of its divisors is an integer number (6455160).

Almost surely, 2^49999399 is an apocalyptic number.

49999399 is a deficient number, since it is larger than the sum of its proper divisors (1641881).

49999399 is a wasteful number, since it uses less digits than its factorization.

49999399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12089.

The product of its digits is 6377292, while the sum is 61.

The square root of 49999399 is about 7071.0253146202. The cubic root of 49999399 is about 368.4016737895.

The spelling of 49999399 in words is "forty-nine million, nine hundred ninety-nine thousand, three hundred ninety-nine".