740574839 has 2 divisors, whose sum is σ = 740574840. Its totient is φ = 740574838.

The previous prime is 740574829. The next prime is 740574847. The reversal of 740574839 is 938475047.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 740574839 - 2⁴ = 740574823 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 740574793 and 740574802.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (740574829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 370287419 + 370287420.

It is an arithmetic number, because the mean of its divisors is an integer number (370287420).

Almost surely, 2^740574839 is an apocalyptic number.

740574839 is a deficient number, since it is larger than the sum of its proper divisors (1).

740574839 is an equidigital number, since it uses as much as digits as its factorization.

740574839 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 846720, while the sum is 47.

The square root of 740574839 is about 27213.5047173274. The cubic root of 740574839 is about 904.7383181636.

The spelling of 740574839 in words is "seven hundred forty million, five hundred seventy-four thousand, eight hundred thirty-nine".