801967770 has 64 divisors (see below), whose sum is σ = 2251152000. Its totient is φ = 202601088.

The previous prime is 801967763. The next prime is 801967781. The reversal of 801967770 is 77769108.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 73035 + ... + 83294.

It is an arithmetic number, because the mean of its divisors is an integer number (35174250).

Almost surely, 2^801967770 is an apocalyptic number.

801967770 is an abundant number, since it is smaller than the sum of its proper divisors (1449184230).

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

801967770 is a wasteful number, since it uses less digits than its factorization.

801967770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156364 (or 156358 counting only the distinct ones).

The product of its (nonzero) digits is 148176, while the sum is 45.

The square root of 801967770 is about 28319.0354708631. The cubic root of 801967770 is about 929.0782751239.

The spelling of 801967770 in words is "eight hundred one million, nine hundred sixty-seven thousand, seven hundred seventy".