10203994 has 4 divisors (see below), whose sum is σ = 15305994. Its totient is φ = 5101996.

The previous prime is 10203989. The next prime is 10204021. The reversal of 10203994 is 49930201.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 9828225 + 375769 = 3135^2 + 613^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2550997 + ... + 2551000.

Almost surely, 2^10203994 is an apocalyptic number.

10203994 is a deficient number, since it is larger than the sum of its proper divisors (5102000).

10203994 is an equidigital number, since it uses as much as digits as its factorization.

10203994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5101999.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 10203994 is about 3194.3691082904. The cubic root of 10203994 is about 216.8985913649.

The spelling of 10203994 in words is "ten million, two hundred three thousand, nine hundred ninety-four".