920780801 has 8 divisors (see below), whose sum is σ = 943018560. Its totient is φ = 898580592.

The previous prime is 920780797. The next prime is 920780803. The reversal of 920780801 is 108087029.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 920780801 - 2² = 920780797 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (920780803) 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, 43835 + ... + 61343.

It is an arithmetic number, because the mean of its divisors is an integer number (117877320).

It is a Proth number, since it is equal to 7025 ⋅ 2¹⁷ + 1 and 7025 < 2¹⁷.

Almost surely, 2^920780801 is an apocalyptic number.

It is an amenable number.

920780801 is a deficient number, since it is larger than the sum of its proper divisors (22237759).

920780801 is a wasteful number, since it uses less digits than its factorization.

920780801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18775.

The product of its (nonzero) digits is 8064, while the sum is 35.

The square root of 920780801 is about 30344.3701697695. The cubic root of 920780801 is about 972.8638927393.

The spelling of 920780801 in words is "nine hundred twenty million, seven hundred eighty thousand, eight hundred one".