11900749 has 4 divisors (see below), whose sum is σ = 13600864. Its totient is φ = 10200636.

The previous prime is 11900711. The next prime is 11900767. The reversal of 11900749 is 94700911.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11900749 - 2¹¹ = 11898701 is a prime.

It is a super-2 number, since 2×11900749² = 283255653522002, 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 11900749.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11900149) 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, 850047 + ... + 850060.

It is an arithmetic number, because the mean of its divisors is an integer number (3400216).

Almost surely, 2^11900749 is an apocalyptic number.

It is an amenable number.

11900749 is a deficient number, since it is larger than the sum of its proper divisors (1700115).

11900749 is an equidigital number, since it uses as much as digits as its factorization.

11900749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1700114.

The product of its (nonzero) digits is 2268, while the sum is 31.

The square root of 11900749 is about 3449.7462225503. The cubic root of 11900749 is about 228.3099112257.

The spelling of 11900749 in words is "eleven million, nine hundred thousand, seven hundred forty-nine".