49399479 has 6 divisors (see below), whose sum is σ = 71354816. Its totient is φ = 32932980.

The previous prime is 49399463. The next prime is 49399489. The reversal of 49399479 is 97499394.

It is not a de Polignac number, because 49399479 - 2⁴ = 49399463 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 (49399409) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2744407 + ... + 2744424.

Almost surely, 2^49399479 is an apocalyptic number.

49399479 is a deficient number, since it is larger than the sum of its proper divisors (21955337).

49399479 is a wasteful number, since it uses less digits than its factorization.

49399479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5488837 (or 5488834 counting only the distinct ones).

The product of its digits is 2204496, while the sum is 54.

The square root of 49399479 is about 7028.4762929101. The cubic root of 49399479 is about 366.9223132690.

The spelling of 49399479 in words is "forty-nine million, three hundred ninety-nine thousand, four hundred seventy-nine".