809946054 has 20 divisors (see below), whose sum is σ = 1814879484. Its totient is φ = 269981964.

The previous prime is 809946047. The next prime is 809946091. The reversal of 809946054 is 450649908.

It is a happy number.

It is a super-2 number, since 2×809946054² = 1312025220780341832, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2499672 + ... + 2499995.

Almost surely, 2^809946054 is an apocalyptic number.

809946054 is an abundant number, since it is smaller than the sum of its proper divisors (1004933430).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

809946054 is a wasteful number, since it uses less digits than its factorization.

809946054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4999681 (or 4999672 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 809946054 is about 28459.5511911204. The cubic root of 809946054 is about 932.1490571582.

The spelling of 809946054 in words is "eight hundred nine million, nine hundred forty-six thousand, fifty-four".