740713781 has 8 divisors (see below), whose sum is σ = 773198784. Its totient is φ = 708252160.

The previous prime is 740713777. The next prime is 740713793. The reversal of 740713781 is 187317047.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 740713781 - 2² = 740713777 is a prime.

It is a super-2 number, since 2×740713781² = 1097313810726631922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (740713381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99470 + ... + 106656.

It is an arithmetic number, because the mean of its divisors is an integer number (96649848).

Almost surely, 2^740713781 is an apocalyptic number.

It is an amenable number.

740713781 is a deficient number, since it is larger than the sum of its proper divisors (32485003).

740713781 is a wasteful number, since it uses less digits than its factorization.

740713781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11691.

The product of its (nonzero) digits is 32928, while the sum is 38.

The square root of 740713781 is about 27216.0574110212. The cubic root of 740713781 is about 904.7948950658.

The spelling of 740713781 in words is "seven hundred forty million, seven hundred thirteen thousand, seven hundred eighty-one".