47287679 has 4 divisors (see below), whose sum is σ = 48813120. Its totient is φ = 45762240.

The previous prime is 47287657. The next prime is 47287697. The reversal of 47287679 is 97678274.

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 47287679 - 2⁸ = 47287423 is a prime.

It is a super-2 number, since 2×47287679² = 4472249170414082, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47287699) 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, 762674 + ... + 762735.

It is an arithmetic number, because the mean of its divisors is an integer number (12203280).

Almost surely, 2^47287679 is an apocalyptic number.

47287679 is a deficient number, since it is larger than the sum of its proper divisors (1525441).

47287679 is a wasteful number, since it uses less digits than its factorization.

47287679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1525440.

The product of its digits is 1185408, while the sum is 50.

The square root of 47287679 is about 6876.6037402194. The cubic root of 47287679 is about 361.6174111841.

The spelling of 47287679 in words is "forty-seven million, two hundred eighty-seven thousand, six hundred seventy-nine".