97487213 has 4 divisors (see below), whose sum is σ = 97534848. Its totient is φ = 97439580.

The previous prime is 97487207. The next prime is 97487237. The reversal of 97487213 is 31278479.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31278479 = 1231 ⋅25409.

It is a cyclic number.

It is not a de Polignac number, because 97487213 - 2⁸ = 97486957 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 (97487263) 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, 20603 + ... + 24888.

It is an arithmetic number, because the mean of its divisors is an integer number (24383712).

Almost surely, 2^97487213 is an apocalyptic number.

It is an amenable number.

97487213 is a deficient number, since it is larger than the sum of its proper divisors (47635).

97487213 is a wasteful number, since it uses less digits than its factorization.

97487213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47634.

The product of its digits is 84672, while the sum is 41.

The square root of 97487213 is about 9873.5613129205. The cubic root of 97487213 is about 460.2380824883.

It can be divided in two parts, 9748 and 7213, that added together give a palindrome (16961).

The spelling of 97487213 in words is "ninety-seven million, four hundred eighty-seven thousand, two hundred thirteen".