47988406 has 4 divisors (see below), whose sum is σ = 71982612. Its totient is φ = 23994202.

The previous prime is 47988389. The next prime is 47988427. The reversal of 47988406 is 60488974.

It is a happy number.

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

It is a super-2 number, since 2×47988406² = 4605774220841672, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11997100 + ... + 11997103.

It is an arithmetic number, because the mean of its divisors is an integer number (17995653).

Almost surely, 2^47988406 is an apocalyptic number.

47988406 is a deficient number, since it is larger than the sum of its proper divisors (23994206).

47988406 is a wasteful number, since it uses less digits than its factorization.

47988406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23994205.

The product of its (nonzero) digits is 387072, while the sum is 46.

The square root of 47988406 is about 6927.3664548658. The cubic root of 47988406 is about 363.3948555211.

The spelling of 47988406 in words is "forty-seven million, nine hundred eighty-eight thousand, four hundred six".