761640500 has 24 divisors (see below), whose sum is σ = 1663423944. Its totient is φ = 304656000.

The previous prime is 761640491. The next prime is 761640521. The reversal of 761640500 is 5046167.

It can be written as a sum of positive squares in 4 ways, for example, as 155102116 + 606538384 = 12454^2 + 24628^2 .

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 761141 + ... + 762140.

It is an arithmetic number, because the mean of its divisors is an integer number (69309331).

Almost surely, 2^761640500 is an apocalyptic number.

It is an amenable number.

761640500 is an abundant number, since it is smaller than the sum of its proper divisors (901783444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

761640500 is a wasteful number, since it uses less digits than its factorization.

761640500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1523300 (or 1523288 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 761640500 is about 27597.8350600187. The cubic root of 761640500 is about 913.2366728946.

Adding to 761640500 its reverse (5046167), we get a palindrome (766686667).

The spelling of 761640500 in words is "seven hundred sixty-one million, six hundred forty thousand, five hundred".