10047890 has 16 divisors (see below), whose sum is σ = 18125208. Its totient is φ = 4010496.

The previous prime is 10047881. The next prime is 10047907. The reversal of 10047890 is 9874001.

It can be written as a sum of positive squares in 4 ways, for example, as 8922169 + 1125721 = 2987^2 + 1061^2 .

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, 5984 + ... + 7476.

Almost surely, 2^10047890 is an apocalyptic number.

10047890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10047890 is a deficient number, since it is larger than the sum of its proper divisors (8077318).

10047890 is a wasteful number, since it uses less digits than its factorization.

10047890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2173.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 10047890 is about 3169.8406900032. The cubic root of 10047890 is about 215.7868410399.

Subtracting from 10047890 its reverse (9874001), we obtain a square (173889 = 417²).

The spelling of 10047890 in words is "ten million, forty-seven thousand, eight hundred ninety".