740996261 has 2 divisors, whose sum is σ = 740996262. Its totient is φ = 740996260.

The previous prime is 740996251. The next prime is 740996273. The reversal of 740996261 is 162699047.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 452200225 + 288796036 = 21265^2 + 16994^2 .

It is a cyclic number.

It is not a de Polignac number, because 740996261 - 2²² = 736801957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (740996251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 370498130 + 370498131.

It is an arithmetic number, because the mean of its divisors is an integer number (370498131).

Almost surely, 2^740996261 is an apocalyptic number.

It is an amenable number.

740996261 is a deficient number, since it is larger than the sum of its proper divisors (1).

740996261 is an equidigital number, since it uses as much as digits as its factorization.

740996261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 163296, while the sum is 44.

The square root of 740996261 is about 27221.2464997472. The cubic root of 740996261 is about 904.9098985418.

The spelling of 740996261 in words is "seven hundred forty million, nine hundred ninety-six thousand, two hundred sixty-one".