47609919 has 36 divisors (see below), whose sum is σ = 81735264. Its totient is φ = 26615232.

The previous prime is 47609899. The next prime is 47609923. The reversal of 47609919 is 91990674.

It is not a de Polignac number, because 47609919 - 2⁸ = 47609663 is a prime.

It is a super-2 number, since 2×47609919² = 4533408774373122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47609719) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 19579 + ... + 21875.

It is an arithmetic number, because the mean of its divisors is an integer number (2270424).

Almost surely, 2^47609919 is an apocalyptic number.

47609919 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

47609919 is a deficient number, since it is larger than the sum of its proper divisors (34125345).

47609919 is a wasteful number, since it uses less digits than its factorization.

47609919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2364 (or 2354 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 45.

The square root of 47609919 is about 6899.9941304323. The cubic root of 47609919 is about 362.4369615314.

The spelling of 47609919 in words is "forty-seven million, six hundred nine thousand, nine hundred nineteen".