11631739 has 4 divisors (see below), whose sum is σ = 13293424. Its totient is φ = 9970056.

The previous prime is 11631733. The next prime is 11631761. The reversal of 11631739 is 93713611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93713611 = 251 ⋅373361.

It is a cyclic number.

It is not a de Polignac number, because 11631739 - 2³ = 11631731 is a prime.

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 11631739.

It is not an unprimeable number, because it can be changed into a prime (11631731) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 830832 + ... + 830845.

It is an arithmetic number, because the mean of its divisors is an integer number (3323356).

Almost surely, 2^11631739 is an apocalyptic number.

11631739 is a deficient number, since it is larger than the sum of its proper divisors (1661685).

11631739 is an equidigital number, since it uses as much as digits as its factorization.

11631739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1661684.

The product of its digits is 3402, while the sum is 31.

The square root of 11631739 is about 3410.5335359735. The cubic root of 11631739 is about 226.5765099446.

The spelling of 11631739 in words is "eleven million, six hundred thirty-one thousand, seven hundred thirty-nine".