87546397 has 2 divisors, whose sum is σ = 87546398. Its totient is φ = 87546396.

The previous prime is 87546391. The next prime is 87546401. The reversal of 87546397 is 79364578.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 87216921 + 329476 = 9339^2 + 574^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87546397 is a prime.

It is a super-3 number, since 3×87546397³ (a number of 25 digits) contains 333 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 87546397.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87546391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43773198 + 43773199.

It is an arithmetic number, because the mean of its divisors is an integer number (43773199).

Almost surely, 2^87546397 is an apocalyptic number.

It is an amenable number.

87546397 is a deficient number, since it is larger than the sum of its proper divisors (1).

87546397 is an equidigital number, since it uses as much as digits as its factorization.

87546397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1270080, while the sum is 49.

The square root of 87546397 is about 9356.6231622311. The cubic root of 87546397 is about 444.0304557336.

It can be divided in two parts, 8754 and 6397, that added together give a palindrome (15151).

The spelling of 87546397 in words is "eighty-seven million, five hundred forty-six thousand, three hundred ninety-seven".