1039664423 has 8 divisors (see below), whose sum is σ = 1239848448. Its totient is φ = 852395544.

The previous prime is 1039664341. The next prime is 1039664473. The reversal of 1039664423 is 3244669301.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1039664423 - 2⁸ = 1039664167 is a prime.

It is a super-2 number, since 2×1039664423² = 2161804224903845858, 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 (1039664473) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3228611 + ... + 3228932.

It is an arithmetic number, because the mean of its divisors is an integer number (154981056).

Almost surely, 2^1039664423 is an apocalyptic number.

1039664423 is a deficient number, since it is larger than the sum of its proper divisors (200184025).

1039664423 is an equidigital number, since it uses as much as digits as its factorization.

1039664423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6457573.

The product of its (nonzero) digits is 93312, while the sum is 38.

The square root of 1039664423 is about 32243.8276729051. The cubic root of 1039664423 is about 1013.0504199842.

The spelling of 1039664423 in words is "one billion, thirty-nine million, six hundred sixty-four thousand, four hundred twenty-three".