87497629 has 4 divisors (see below), whose sum is σ = 87519420. Its totient is φ = 87475840.

The previous prime is 87497621. The next prime is 87497659. The reversal of 87497629 is 92679478.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11546404 + 75951225 = 3398^2 + 8715^2 .

It is a cyclic number.

It is not a de Polignac number, because 87497629 - 2³ = 87497621 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 (87497621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2932 + ... + 13549.

It is an arithmetic number, because the mean of its divisors is an integer number (21879855).

Almost surely, 2^87497629 is an apocalyptic number.

It is an amenable number.

87497629 is a deficient number, since it is larger than the sum of its proper divisors (21791).

87497629 is a wasteful number, since it uses less digits than its factorization.

87497629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21790.

The product of its digits is 1524096, while the sum is 52.

The square root of 87497629 is about 9354.0167307954. The cubic root of 87497629 is about 443.9479908915.

The spelling of 87497629 in words is "eighty-seven million, four hundred ninety-seven thousand, six hundred twenty-nine".