97443957 has 16 divisors (see below), whose sum is σ = 140995008. Its totient is φ = 59504640.

The previous prime is 97443953. The next prime is 97443961. The reversal of 97443957 is 75934479.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (97443953) and next prime (97443961).

It is not a de Polignac number, because 97443957 - 2² = 97443953 is a prime.

It is a super-3 number, since 3×97443957³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97443953) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4428 + ... + 14645.

It is an arithmetic number, because the mean of its divisors is an integer number (8812188).

Almost surely, 2^97443957 is an apocalyptic number.

It is an amenable number.

97443957 is a deficient number, since it is larger than the sum of its proper divisors (43551051).

97443957 is a wasteful number, since it uses less digits than its factorization.

97443957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19220.

The product of its digits is 952560, while the sum is 48.

The square root of 97443957 is about 9871.3705735323. The cubic root of 97443957 is about 460.1700017521.

The spelling of 97443957 in words is "ninety-seven million, four hundred forty-three thousand, nine hundred fifty-seven".