749921369 has 2 divisors, whose sum is σ = 749921370. Its totient is φ = 749921368.

The previous prime is 749921363. The next prime is 749921399. The reversal of 749921369 is 963129947.

749921369 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 624750025 + 125171344 = 24995^2 + 11188^2 .

It is a cyclic number.

It is not a de Polignac number, because 749921369 - 2⁸ = 749921113 is a prime.

It is a super-2 number, since 2×749921369² = 1124764119365668322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (749921363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 374960684 + 374960685.

It is an arithmetic number, because the mean of its divisors is an integer number (374960685).

Almost surely, 2^749921369 is an apocalyptic number.

It is an amenable number.

749921369 is a deficient number, since it is larger than the sum of its proper divisors (1).

749921369 is an equidigital number, since it uses as much as digits as its factorization.

749921369 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 734832, while the sum is 50.

The square root of 749921369 is about 27384.6922385482. The cubic root of 749921369 is about 908.5285437487.

The spelling of 749921369 in words is "seven hundred forty-nine million, nine hundred twenty-one thousand, three hundred sixty-nine".