39680473 has 4 divisors (see below), whose sum is σ = 45349120. Its totient is φ = 34011828.

The previous prime is 39680461. The next prime is 39680477. The reversal of 39680473 is 37408693.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 39680473 - 2¹⁷ = 39549401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39680477) 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, 2834313 + ... + 2834326.

It is an arithmetic number, because the mean of its divisors is an integer number (11337280).

Almost surely, 2^39680473 is an apocalyptic number.

It is an amenable number.

39680473 is a deficient number, since it is larger than the sum of its proper divisors (5668647).

39680473 is an equidigital number, since it uses as much as digits as its factorization.

39680473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5668646.

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 39680473 is about 6299.2438435101. The cubic root of 39680473 is about 341.0821145947.

The spelling of 39680473 in words is "thirty-nine million, six hundred eighty thousand, four hundred seventy-three".