87897397 has 8 divisors (see below), whose sum is σ = 101393856. Its totient is φ = 74635872.

The previous prime is 87897391. The next prime is 87897409. The reversal of 87897397 is 79379878.

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 87897397 - 2²³ = 79508789 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 (87897391) 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, 57928 + ... + 59425.

It is an arithmetic number, because the mean of its divisors is an integer number (12674232).

Almost surely, 2^87897397 is an apocalyptic number.

It is an amenable number.

87897397 is a deficient number, since it is larger than the sum of its proper divisors (13496459).

87897397 is a wasteful number, since it uses less digits than its factorization.

87897397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117467.

The product of its digits is 5334336, while the sum is 58.

The square root of 87897397 is about 9375.3611663765. The cubic root of 87897397 is about 444.6230819236.

The spelling of 87897397 in words is "eighty-seven million, eight hundred ninety-seven thousand, three hundred ninety-seven".