76445653 has 8 divisors (see below), whose sum is σ = 79489080. Its totient is φ = 73429440.

The previous prime is 76445647. The next prime is 76445657. The reversal of 76445653 is 35654467.

It can be written as a sum of positive squares in 4 ways, for example, as 18335524 + 58110129 = 4282^2 + 7623^2 .

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 76445653 - 2¹³ = 76437461 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 (76445657) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 978 + ... + 12403.

It is an arithmetic number, because the mean of its divisors is an integer number (9936135).

Almost surely, 2^76445653 is an apocalyptic number.

It is an amenable number.

76445653 is a deficient number, since it is larger than the sum of its proper divisors (3043427).

76445653 is a wasteful number, since it uses less digits than its factorization.

76445653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13607.

The product of its digits is 302400, while the sum is 40.

The square root of 76445653 is about 8743.3204790857. The cubic root of 76445653 is about 424.4086872471.

The spelling of 76445653 in words is "seventy-six million, four hundred forty-five thousand, six hundred fifty-three".