97229618 has 4 divisors (see below), whose sum is σ = 145844430. Its totient is φ = 48614808.

The previous prime is 97229617. The next prime is 97229621. The reversal of 97229618 is 81692279.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 81692279 = 521 ⋅156799.

It can be written as a sum of positive squares in only one way, i.e., 97160449 + 69169 = 9857^2 + 263^2 .

It is not an unprimeable number, because it can be changed into a prime (97229611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24307403 + ... + 24307406.

Almost surely, 2^97229618 is an apocalyptic number.

97229618 is a deficient number, since it is larger than the sum of its proper divisors (48614812).

97229618 is a wasteful number, since it uses less digits than its factorization.

97229618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48614811.

The product of its digits is 108864, while the sum is 44.

The square root of 97229618 is about 9860.5079990840. The cubic root of 97229618 is about 459.8323554194.

The spelling of 97229618 in words is "ninety-seven million, two hundred twenty-nine thousand, six hundred eighteen".