87097769 has 8 divisors (see below), whose sum is σ = 95087520. Its totient is φ = 79120000.

The previous prime is 87097739. The next prime is 87097771. The reversal of 87097769 is 96779078.

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 87097769 - 2⁸ = 87097513 is a prime.

It is a super-2 number, since 2×87097769² = 15172042729554722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 87097769.

It is not an unprimeable number, because it can be changed into a prime (87097739) 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, 19769 + ... + 23769.

It is an arithmetic number, because the mean of its divisors is an integer number (11885940).

Almost surely, 2^87097769 is an apocalyptic number.

It is an amenable number.

87097769 is a deficient number, since it is larger than the sum of its proper divisors (7989751).

87097769 is a wasteful number, since it uses less digits than its factorization.

87097769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5991.

The product of its (nonzero) digits is 1333584, while the sum is 53.

The square root of 87097769 is about 9332.6185500105. The cubic root of 87097769 is about 443.2706843590.

The spelling of 87097769 in words is "eighty-seven million, ninety-seven thousand, seven hundred sixty-nine".