97812637 has 12 divisors (see below), whose sum is σ = 106464540. Its totient is φ = 89860680.

The previous prime is 97812623. The next prime is 97812641. The reversal of 97812637 is 73621879.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 3606201 + 94206436 = 1899^2 + 9706^2 .

It is not a de Polignac number, because 97812637 - 2¹¹ = 97810589 is a prime.

Its product of digits (127008) is a multiple of the sum of its prime divisors (224).

It is a junction number, because it is equal to n+sod(n) for n = 97812593 and 97812602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97812607) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 463462 + ... + 463672.

It is an arithmetic number, because the mean of its divisors is an integer number (8872045).

Almost surely, 2^97812637 is an apocalyptic number.

It is an amenable number.

97812637 is a deficient number, since it is larger than the sum of its proper divisors (8651903).

97812637 is an frugal number, since it uses more digits than its factorization.

97812637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461 (or 224 counting only the distinct ones).

The product of its digits is 127008, while the sum is 43.

The square root of 97812637 is about 9890.0271485977. The cubic root of 97812637 is about 460.7496236729.

The spelling of 97812637 in words is "ninety-seven million, eight hundred twelve thousand, six hundred thirty-seven".