47919399 has 16 divisors (see below), whose sum is σ = 70060800. Its totient is φ = 28892160.

The previous prime is 47919371. The next prime is 47919427. The reversal of 47919399 is 99391974.

It is an interprime number because it is at equal distance from previous prime (47919371) and next prime (47919427).

It is not a de Polignac number, because 47919399 - 2²³ = 39530791 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47919359) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2919 + ... + 10215.

It is an arithmetic number, because the mean of its divisors is an integer number (4378800).

Almost surely, 2^47919399 is an apocalyptic number.

47919399 is a deficient number, since it is larger than the sum of its proper divisors (22141401).

47919399 is a wasteful number, since it uses less digits than its factorization.

47919399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7510.

The product of its digits is 551124, while the sum is 51.

The square root of 47919399 is about 6922.3839101859. The cubic root of 47919399 is about 363.2205855215.

The spelling of 47919399 in words is "forty-seven million, nine hundred nineteen thousand, three hundred ninety-nine".