76099661 has 8 divisors (see below), whose sum is σ = 83083104. Its totient is φ = 69127120.

The previous prime is 76099657. The next prime is 76099691. The reversal of 76099661 is 16699067.

It is a happy number.

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 76099661 - 2² = 76099657 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76099601) 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, 20591 + ... + 24003.

It is an arithmetic number, because the mean of its divisors is an integer number (10385388).

Almost surely, 2^76099661 is an apocalyptic number.

It is an amenable number.

76099661 is a deficient number, since it is larger than the sum of its proper divisors (6983443).

76099661 is a wasteful number, since it uses less digits than its factorization.

76099661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5451.

The product of its (nonzero) digits is 122472, while the sum is 44.

The square root of 76099661 is about 8723.5119647995. The cubic root of 76099661 is about 423.7674294888.

The spelling of 76099661 in words is "seventy-six million, ninety-nine thousand, six hundred sixty-one".