97691955 has 8 divisors (see below), whose sum is σ = 156307152. Its totient is φ = 52102368.

The previous prime is 97691941. The next prime is 97691969. The reversal of 97691955 is 55919679.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (97691941) and next prime (97691969).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 97691955 - 2⁹ = 97691443 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 97691898 and 97691907.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3256384 + ... + 3256413.

It is an arithmetic number, because the mean of its divisors is an integer number (19538394).

Almost surely, 2^97691955 is an apocalyptic number.

97691955 is a deficient number, since it is larger than the sum of its proper divisors (58615197).

97691955 is a wasteful number, since it uses less digits than its factorization.

97691955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6512805.

The product of its digits is 765450, while the sum is 51.

The square root of 97691955 is about 9883.9240689111. The cubic root of 97691955 is about 460.5600535186.

The spelling of 97691955 in words is "ninety-seven million, six hundred ninety-one thousand, nine hundred fifty-five".