39320989 has 4 divisors (see below), whose sum is σ = 40589440. Its totient is φ = 38052540.

The previous prime is 39320977. The next prime is 39321011. The reversal of 39320989 is 98902393.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 98902393 = 127 ⋅778759.

It is a cyclic number.

It is not a de Polignac number, because 39320989 - 2¹¹ = 39318941 is a prime.

It is a super-2 number, since 2×39320989² = 3092280351876242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39320909) 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, 634179 + ... + 634240.

It is an arithmetic number, because the mean of its divisors is an integer number (10147360).

Almost surely, 2^39320989 is an apocalyptic number.

It is an amenable number.

39320989 is a deficient number, since it is larger than the sum of its proper divisors (1268451).

39320989 is a wasteful number, since it uses less digits than its factorization.

39320989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1268450.

The product of its (nonzero) digits is 104976, while the sum is 43.

The square root of 39320989 is about 6270.6450226432. The cubic root of 39320989 is about 340.0489808327.

The spelling of 39320989 in words is "thirty-nine million, three hundred twenty thousand, nine hundred eighty-nine".