764740545 has 8 divisors (see below), whose sum is σ = 1223584896. Its totient is φ = 407861616.

The previous prime is 764740541. The next prime is 764740549. The reversal of 764740545 is 545047467.

It is an interprime number because it is at equal distance from previous prime (764740541) and next prime (764740549).

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

It is not a de Polignac number, because 764740545 - 2² = 764740541 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 764740497 and 764740506.

It is not an unprimeable number, because it can be changed into a prime (764740541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25491337 + ... + 25491366.

It is an arithmetic number, because the mean of its divisors is an integer number (152948112).

Almost surely, 2^764740545 is an apocalyptic number.

It is an amenable number.

764740545 is a deficient number, since it is larger than the sum of its proper divisors (458844351).

764740545 is a wasteful number, since it uses less digits than its factorization.

764740545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50982711.

The product of its (nonzero) digits is 470400, while the sum is 42.

The square root of 764740545 is about 27653.9426664626. The cubic root of 764740545 is about 914.4740206155.

The spelling of 764740545 in words is "seven hundred sixty-four million, seven hundred forty thousand, five hundred forty-five".