39475487 has 4 divisors (see below), whose sum is σ = 39539880. Its totient is φ = 39411096.

The previous prime is 39475463. The next prime is 39475489. The reversal of 39475487 is 78457493.

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 39475487 - 2⁸ = 39475231 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 (39475489) 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, 31268 + ... + 32505.

It is an arithmetic number, because the mean of its divisors is an integer number (9884970).

Almost surely, 2^39475487 is an apocalyptic number.

39475487 is a deficient number, since it is larger than the sum of its proper divisors (64393).

39475487 is an equidigital number, since it uses as much as digits as its factorization.

39475487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64392.

The product of its digits is 846720, while the sum is 47.

The square root of 39475487 is about 6282.9520927666. The cubic root of 39475487 is about 340.4937664309.

The spelling of 39475487 in words is "thirty-nine million, four hundred seventy-five thousand, four hundred eighty-seven".