97442237 has 4 divisors (see below), whose sum is σ = 101678880. Its totient is φ = 93205596.

The previous prime is 97442227. The next prime is 97442239. The reversal of 97442237 is 73224479.

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: 73224479 = 23 ⋅3183673.

It is a cyclic number.

It is not a de Polignac number, because 97442237 - 2⁶ = 97442173 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 97442237.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97442239) 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, 2118287 + ... + 2118332.

It is an arithmetic number, because the mean of its divisors is an integer number (25419720).

Almost surely, 2^97442237 is an apocalyptic number.

It is an amenable number.

97442237 is a deficient number, since it is larger than the sum of its proper divisors (4236643).

97442237 is a wasteful number, since it uses less digits than its factorization.

97442237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4236642.

The product of its digits is 84672, while the sum is 38.

The square root of 97442237 is about 9871.2834525202. The cubic root of 97442237 is about 460.1672942230.

It can be divided in two parts, 97442 and 237, that added together give a palindrome (97679).

The spelling of 97442237 in words is "ninety-seven million, four hundred forty-two thousand, two hundred thirty-seven".