102790946 has 4 divisors (see below), whose sum is σ = 154186422. Its totient is φ = 51395472.

The previous prime is 102790907. The next prime is 102790949. The reversal of 102790946 is 649097201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 649097201 = 53 ⋅12247117.

It can be written as a sum of positive squares in only one way, i.e., 53860921 + 48930025 = 7339^2 + 6995^2 .

It is not an unprimeable number, because it can be changed into a prime (102790949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25697735 + ... + 25697738.

Almost surely, 2^102790946 is an apocalyptic number.

102790946 is a deficient number, since it is larger than the sum of its proper divisors (51395476).

102790946 is an equidigital number, since it uses as much as digits as its factorization.

102790946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51395475.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 102790946 is about 10138.5869824153. The cubic root of 102790946 is about 468.4374638188.

The spelling of 102790946 in words is "one hundred two million, seven hundred ninety thousand, nine hundred forty-six".