1039972659 has 16 divisors (see below), whose sum is σ = 1527669504. Its totient is φ = 624044000.

The previous prime is 1039972651. The next prime is 1039972663. The reversal of 1039972659 is 9562799301.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1039972659 - 2³ = 1039972651 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1039972651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 152679 + ... + 159344.

It is an arithmetic number, because the mean of its divisors is an integer number (95479344).

Almost surely, 2^1039972659 is an apocalyptic number.

1039972659 is a deficient number, since it is larger than the sum of its proper divisors (487696845).

1039972659 is a wasteful number, since it uses less digits than its factorization.

1039972659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312138.

The product of its (nonzero) digits is 918540, while the sum is 51.

The square root of 1039972659 is about 32248.6070861983. The cubic root of 1039972659 is about 1013.1505252836.

The spelling of 1039972659 in words is "one billion, thirty-nine million, nine hundred seventy-two thousand, six hundred fifty-nine".