39628087 has 4 divisors (see below), whose sum is σ = 39641560. Its totient is φ = 39614616.

The previous prime is 39628081. The next prime is 39628093. The reversal of 39628087 is 78082693.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 78082693 = 13 ⋅6006361.

It is an interprime number because it is at equal distance from previous prime (39628081) and next prime (39628093).

It is a cyclic number.

It is not a de Polignac number, because 39628087 - 2³ = 39628079 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 (39628081) 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, 228 + ... + 8905.

It is an arithmetic number, because the mean of its divisors is an integer number (9910390).

Almost surely, 2^39628087 is an apocalyptic number.

39628087 is a deficient number, since it is larger than the sum of its proper divisors (13473).

39628087 is an equidigital number, since it uses as much as digits as its factorization.

39628087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13472.

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 39628087 is about 6295.0843520957. The cubic root of 39628087 is about 340.9319500836.

The spelling of 39628087 in words is "thirty-nine million, six hundred twenty-eight thousand, eighty-seven".