12990757 has 8 divisors (see below), whose sum is σ = 14036960. Its totient is φ = 11951280.

The previous prime is 12990749. The next prime is 12990787. The reversal of 12990757 is 75709921.

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

It is a cyclic number.

It is not a de Polignac number, because 12990757 - 2³ = 12990749 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 (12990787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2794 + ... + 5812.

It is an arithmetic number, because the mean of its divisors is an integer number (1754620).

Almost surely, 2^12990757 is an apocalyptic number.

It is an amenable number.

12990757 is a deficient number, since it is larger than the sum of its proper divisors (1046203).

12990757 is a wasteful number, since it uses less digits than its factorization.

12990757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3363.

The product of its (nonzero) digits is 39690, while the sum is 40.

The square root of 12990757 is about 3604.2692740693. The cubic root of 12990757 is about 235.0777289275.

The spelling of 12990757 in words is "twelve million, nine hundred ninety thousand, seven hundred fifty-seven".