801380837 has 4 divisors (see below), whose sum is σ = 802474860. Its totient is φ = 800286816.

The previous prime is 801380821. The next prime is 801380849. The reversal of 801380837 is 738083108.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 516243841 + 285136996 = 22721^2 + 16886^2 .

It is a cyclic number.

It is not a de Polignac number, because 801380837 - 2⁴ = 801380821 is a prime.

It is a super-2 number, since 2×801380837² = 1284422491821641138, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 801380837.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (801380897) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 545912 + ... + 547377.

It is an arithmetic number, because the mean of its divisors is an integer number (200618715).

Almost surely, 2^801380837 is an apocalyptic number.

It is an amenable number.

801380837 is a deficient number, since it is larger than the sum of its proper divisors (1094023).

801380837 is a wasteful number, since it uses less digits than its factorization.

801380837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1094022.

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 801380837 is about 28308.6707035141. The cubic root of 801380837 is about 928.8515661861.

The spelling of 801380837 in words is "eight hundred one million, three hundred eighty thousand, eight hundred thirty-seven".