47497799 has 4 divisors (see below), whose sum is σ = 47556336. Its totient is φ = 47439264.

The previous prime is 47497789. The next prime is 47497819. The reversal of 47497799 is 99779474.

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

It is a cyclic number.

It is not a de Polignac number, because 47497799 - 2⁸ = 47497543 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 (47497759) 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, 28034 + ... + 29679.

It is an arithmetic number, because the mean of its divisors is an integer number (11889084).

Almost surely, 2^47497799 is an apocalyptic number.

47497799 is a deficient number, since it is larger than the sum of its proper divisors (58537).

47497799 is an equidigital number, since it uses as much as digits as its factorization.

47497799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58536.

The product of its digits is 4000752, while the sum is 56.

The square root of 47497799 is about 6891.8646968727. The cubic root of 47497799 is about 362.1522283357.

The spelling of 47497799 in words is "forty-seven million, four hundred ninety-seven thousand, seven hundred ninety-nine".