748393531 has 2 divisors, whose sum is σ = 748393532. Its totient is φ = 748393530.

The previous prime is 748393523. The next prime is 748393559. The reversal of 748393531 is 135393847.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 748393531 - 2³ = 748393523 is a prime.

It is a super-2 number, since 2×748393531² = 1120185754485295922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (748393511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 374196765 + 374196766.

It is an arithmetic number, because the mean of its divisors is an integer number (374196766).

Almost surely, 2^748393531 is an apocalyptic number.

748393531 is a deficient number, since it is larger than the sum of its proper divisors (1).

748393531 is an equidigital number, since it uses as much as digits as its factorization.

748393531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 272160, while the sum is 43.

The square root of 748393531 is about 27356.7821755410. The cubic root of 748393531 is about 907.9111331679.

The spelling of 748393531 in words is "seven hundred forty-eight million, three hundred ninety-three thousand, five hundred thirty-one".