47420587 has 4 divisors (see below), whose sum is σ = 47451600. Its totient is φ = 47389576.

The previous prime is 47420579. The next prime is 47420617. The reversal of 47420587 is 78502474.

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 47420587 - 2³ = 47420579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47420507) 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, 13087 + ... + 16312.

It is an arithmetic number, because the mean of its divisors is an integer number (11862900).

Almost surely, 2^47420587 is an apocalyptic number.

47420587 is a deficient number, since it is larger than the sum of its proper divisors (31013).

47420587 is a wasteful number, since it uses less digits than its factorization.

47420587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31012.

The product of its (nonzero) digits is 62720, while the sum is 37.

The square root of 47420587 is about 6886.2607415055. The cubic root of 47420587 is about 361.9558847577.

The spelling of 47420587 in words is "forty-seven million, four hundred twenty thousand, five hundred eighty-seven".