97829555 has 4 divisors (see below), whose sum is σ = 117395472. Its totient is φ = 78263640.

The previous prime is 97829549. The next prime is 97829561. The reversal of 97829555 is 55592879.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55592879 = 19 ⋅2925941.

It is an interprime number because it is at equal distance from previous prime (97829549) and next prime (97829561).

It is not a de Polignac number, because 97829555 - 2⁶ = 97829491 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9782951 + ... + 9782960.

It is an arithmetic number, because the mean of its divisors is an integer number (29348868).

Almost surely, 2^97829555 is an apocalyptic number.

97829555 is a deficient number, since it is larger than the sum of its proper divisors (19565917).

97829555 is a wasteful number, since it uses less digits than its factorization.

97829555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19565916.

The product of its digits is 1134000, while the sum is 50.

The square root of 97829555 is about 9890.8824176612. The cubic root of 97829555 is about 460.7761864055.

The spelling of 97829555 in words is "ninety-seven million, eight hundred twenty-nine thousand, five hundred fifty-five".