1039675491 has 12 divisors (see below), whose sum is σ = 1553538480. Its totient is φ = 669216240.

The previous prime is 1039675411. The next prime is 1039675493. The reversal of 1039675491 is 1945769301.

1039675491 is a `hidden beast` number, since 1 + 0 + 3 + 96 + 75 + 491 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-1039675491 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1039675493) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1991455 + ... + 1991976.

It is an arithmetic number, because the mean of its divisors is an integer number (129461540).

Almost surely, 2^1039675491 is an apocalyptic number.

1039675491 is a deficient number, since it is larger than the sum of its proper divisors (513862989).

1039675491 is a wasteful number, since it uses less digits than its factorization.

1039675491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3983466 (or 3983463 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 45.

The square root of 1039675491 is about 32243.9993021957. Note that the first 3 decimals coincide. The cubic root of 1039675491 is about 1013.0540148628.

Adding to 1039675491 its sum of digits (45), we get a square (1039675536 = 32244²).

The spelling of 1039675491 in words is "one billion, thirty-nine million, six hundred seventy-five thousand, four hundred ninety-one".