749340869 has 2 divisors, whose sum is σ = 749340870. Its totient is φ = 749340868.

The previous prime is 749340863. The next prime is 749340937. The reversal of 749340869 is 968043947.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 545222500 + 204118369 = 23350^2 + 14287^2 .

It is a cyclic number.

It is not a de Polignac number, because 749340869 - 2¹⁶ = 749275333 is a prime.

It is a super-2 number, since 2×749340869² = 1123023475907350322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (749340863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 374670434 + 374670435.

It is an arithmetic number, because the mean of its divisors is an integer number (374670435).

Almost surely, 2^749340869 is an apocalyptic number.

It is an amenable number.

749340869 is a deficient number, since it is larger than the sum of its proper divisors (1).

749340869 is an equidigital number, since it uses as much as digits as its factorization.

749340869 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1306368, while the sum is 50.

The square root of 749340869 is about 27374.0911995266. The cubic root of 749340869 is about 908.2940582930.

The spelling of 749340869 in words is "seven hundred forty-nine million, three hundred forty thousand, eight hundred sixty-nine".