49400979 has 4 divisors (see below), whose sum is σ = 65867976. Its totient is φ = 32933984.

The previous prime is 49400959. The next prime is 49400999. The reversal of 49400979 is 97900494.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (49400959) and next prime (49400999).

It is a cyclic number.

It is not a de Polignac number, because 49400979 - 2⁹ = 49400467 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 49400979.

It is not an unprimeable number, because it can be changed into a prime (49400959) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8233494 + ... + 8233499.

It is an arithmetic number, because the mean of its divisors is an integer number (16466994).

Almost surely, 2^49400979 is an apocalyptic number.

49400979 is a deficient number, since it is larger than the sum of its proper divisors (16466997).

49400979 is a wasteful number, since it uses less digits than its factorization.

49400979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16466996.

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 49400979 is about 7028.5830008616. The cubic root of 49400979 is about 366.9260270592.

The spelling of 49400979 in words is "forty-nine million, four hundred thousand, nine hundred seventy-nine".