740757 has 4 divisors (see below), whose sum is σ = 987680. Its totient is φ = 493836.

The previous prime is 740749. The next prime is 740801. The reversal of 740757 is 757047.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 740757 - 2³ = 740749 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (740717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123457 + ... + 123462.

It is an arithmetic number, because the mean of its divisors is an integer number (246920).

2⁷⁴⁰⁷⁵⁷ is an apocalyptic number.

It is an amenable number.

740757 is a deficient number, since it is larger than the sum of its proper divisors (246923).

740757 is a wasteful number, since it uses less digits than its factorization.

740757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246922.

The product of its (nonzero) digits is 6860, while the sum is 30.

The square root of 740757 is about 860.6724115481. The cubic root of 740757 is about 90.4812492313.

Subtracting 740757 from its reverse (757047), we obtain a triangular number (16290 = T₁₈₀).

The spelling of 740757 in words is "seven hundred forty thousand, seven hundred fifty-seven".