76500000 has 252 divisors, whose sum is σ = 287926002. Its totient is φ = 19200000.

The previous prime is 76499957. The next prime is 76500007. The reversal of 76500000 is 567.

It can be written as a sum of positive squares in 7 ways, for example, as 29550096 + 46949904 = 5436^2 + 6852^2 .

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76500007) by changing a digit.

It is a polite number, since it can be written in 41 ways as a sum of consecutive naturals, for example, 4499992 + ... + 4500008.

Almost surely, 2^76500000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 76500000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143963001).

76500000 is an abundant number, since it is smaller than the sum of its proper divisors (211426002).

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

76500000 is an equidigital number, since it uses as much as digits as its factorization.

76500000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63 (or 27 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 18.

The square root of 76500000 is about 8746.4278422680. The cubic root of 76500000 is about 424.5092374388.

Adding to 76500000 its reverse (567), we get a palindrome (76500567).

The spelling of 76500000 in words is "seventy-six million, five hundred thousand".