102991846 has 8 divisors (see below), whose sum is σ = 154567224. Its totient is φ = 51469440.

The previous prime is 102991829. The next prime is 102991849. The reversal of 102991846 is 648199201.

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

It is a junction number, because it is equal to n+sod(n) for n = 102991799 and 102991808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102991849) 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, 7960 + ... + 16411.

It is an arithmetic number, because the mean of its divisors is an integer number (19320903).

Almost surely, 2^102991846 is an apocalyptic number.

102991846 is a deficient number, since it is larger than the sum of its proper divisors (51575378).

102991846 is a wasteful number, since it uses less digits than its factorization.

102991846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26486.

The product of its (nonzero) digits is 31104, while the sum is 40.

The square root of 102991846 is about 10148.4898383947. The cubic root of 102991846 is about 468.7424447730.

The spelling of 102991846 in words is "one hundred two million, nine hundred ninety-one thousand, eight hundred forty-six".