840313837 has 8 divisors (see below), whose sum is σ = 917465472. Its totient is φ = 763288800.

The previous prime is 840313823. The next prime is 840313841. The reversal of 840313837 is 738313048.

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 840313837 - 2⁷ = 840313709 is a prime.

It is a super-2 number, since 2×840313837² = 1412254689307325138, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 840313796 and 840313805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (840313847) 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, 17488 + ... + 44569.

It is an arithmetic number, because the mean of its divisors is an integer number (114683184).

Almost surely, 2^840313837 is an apocalyptic number.

It is an amenable number.

840313837 is a deficient number, since it is larger than the sum of its proper divisors (77151635).

840313837 is a wasteful number, since it uses less digits than its factorization.

840313837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63299.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 840313837 is about 28988.1671893895. The cubic root of 840313837 is about 943.6562883311.

The spelling of 840313837 in words is "eight hundred forty million, three hundred thirteen thousand, eight hundred thirty-seven".