803649890 has 16 divisors (see below), whose sum is σ = 1493233920. Its totient is φ = 311090160.

The previous prime is 803649887. The next prime is 803649893. The reversal of 803649890 is 98946308.

It is an interprime number because it is at equal distance from previous prime (803649887) and next prime (803649893).

It is not an unprimeable number, because it can be changed into a prime (803649893) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1295900 + ... + 1296519.

It is an arithmetic number, because the mean of its divisors is an integer number (93327120).

Almost surely, 2^803649890 is an apocalyptic number.

803649890 is a deficient number, since it is larger than the sum of its proper divisors (689584030).

803649890 is a wasteful number, since it uses less digits than its factorization.

803649890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2592457.

The product of its (nonzero) digits is 373248, while the sum is 47.

The square root of 803649890 is about 28348.7193714284. The cubic root of 803649890 is about 929.7273991953.

The spelling of 803649890 in words is "eight hundred three million, six hundred forty-nine thousand, eight hundred ninety".