764949407 has 8 divisors (see below), whose sum is σ = 776653680. Its totient is φ = 753278400.

The previous prime is 764949389. The next prime is 764949421. The reversal of 764949407 is 704949467.

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 764949407 - 2¹⁰ = 764948383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (764949467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40157 + ... + 56057.

It is an arithmetic number, because the mean of its divisors is an integer number (97081710).

Almost surely, 2^764949407 is an apocalyptic number.

764949407 is a deficient number, since it is larger than the sum of its proper divisors (11704273).

764949407 is a wasteful number, since it uses less digits than its factorization.

764949407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16633.

The product of its (nonzero) digits is 1524096, while the sum is 50.

The square root of 764949407 is about 27657.7187598688. The cubic root of 764949407 is about 914.5572651828.

The spelling of 764949407 in words is "seven hundred sixty-four million, nine hundred forty-nine thousand, four hundred seven".