126979693 has 8 divisors (see below), whose sum is σ = 128585408. Its totient is φ = 125380224.

The previous prime is 126979691. The next prime is 126979709. The reversal of 126979693 is 396979621.

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 126979693 - 2¹ = 126979691 is a prime.

It is a super-2 number, since 2×126979693² = 32247684868748498, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 126979693.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126979691) 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, 49480 + ... + 51982.

It is an arithmetic number, because the mean of its divisors is an integer number (16073176).

Almost surely, 2^126979693 is an apocalyptic number.

It is an amenable number.

126979693 is a deficient number, since it is larger than the sum of its proper divisors (1605715).

126979693 is an equidigital number, since it uses as much as digits as its factorization.

126979693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3123.

The product of its digits is 1102248, while the sum is 52.

The square root of 126979693 is about 11268.5266561339. The cubic root of 126979693 is about 502.6257771171.

The spelling of 126979693 in words is "one hundred twenty-six million, nine hundred seventy-nine thousand, six hundred ninety-three".