719525749 has 2 divisors, whose sum is σ = 719525750. Its totient is φ = 719525748.

The previous prime is 719525701. The next prime is 719525777. The reversal of 719525749 is 947525917.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 504316849 + 215208900 = 22457^2 + 14670^2 .

It is a cyclic number.

It is not a de Polignac number, because 719525749 - 2²⁹ = 182654837 is a prime.

It is a super-2 number, since 2×719525749² = 1035434606948022002, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (719525789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 359762874 + 359762875.

It is an arithmetic number, because the mean of its divisors is an integer number (359762875).

Almost surely, 2^719525749 is an apocalyptic number.

It is an amenable number.

719525749 is a deficient number, since it is larger than the sum of its proper divisors (1).

719525749 is an equidigital number, since it uses as much as digits as its factorization.

719525749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 793800, while the sum is 49.

The square root of 719525749 is about 26823.9771286810. The cubic root of 719525749 is about 896.0841180626.

The spelling of 719525749 in words is "seven hundred nineteen million, five hundred twenty-five thousand, seven hundred forty-nine".