740783991 has 8 divisors (see below), whose sum is σ = 988065664. Its totient is φ = 493679160.

The previous prime is 740783983. The next prime is 740784017. The reversal of 740783991 is 199387047.

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

It is not a de Polignac number, because 740783991 - 2³ = 740783983 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 740783991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (740783971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34105 + ... + 51426.

It is an arithmetic number, because the mean of its divisors is an integer number (123508208).

Almost surely, 2^740783991 is an apocalyptic number.

740783991 is a deficient number, since it is larger than the sum of its proper divisors (247281673).

740783991 is a wasteful number, since it uses less digits than its factorization.

740783991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88421.

The product of its (nonzero) digits is 381024, while the sum is 48.

The square root of 740783991 is about 27217.3472439913. The cubic root of 740783991 is about 904.8234817454.

The spelling of 740783991 in words is "seven hundred forty million, seven hundred eighty-three thousand, nine hundred ninety-one".