39422887 has 4 divisors (see below), whose sum is σ = 45054736. Its totient is φ = 33791040.

The previous prime is 39422849. The next prime is 39422899. The reversal of 39422887 is 78822493.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78822493 = 29 ⋅2718017.

It is a cyclic number.

It is not a de Polignac number, because 39422887 - 2²³ = 31034279 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 (39422807) 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, 2815914 + ... + 2815927.

It is an arithmetic number, because the mean of its divisors is an integer number (11263684).

Almost surely, 2^39422887 is an apocalyptic number.

39422887 is a deficient number, since it is larger than the sum of its proper divisors (5631849).

39422887 is an equidigital number, since it uses as much as digits as its factorization.

39422887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5631848.

The product of its digits is 193536, while the sum is 43.

The square root of 39422887 is about 6278.7647670541. The cubic root of 39422887 is about 340.3424663523.

The spelling of 39422887 in words is "thirty-nine million, four hundred twenty-two thousand, eight hundred eighty-seven".