612036813 has 8 divisors (see below), whose sum is σ = 842373376. Its totient is φ = 394862400.

The previous prime is 612036787. The next prime is 612036823. The reversal of 612036813 is 318630216.

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

It is not a de Polignac number, because 612036813 - 2²¹ = 609939661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612036823) 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, 3290428 + ... + 3290613.

It is an arithmetic number, because the mean of its divisors is an integer number (105296672).

Almost surely, 2^612036813 is an apocalyptic number.

It is an amenable number.

612036813 is a deficient number, since it is larger than the sum of its proper divisors (230336563).

612036813 is a wasteful number, since it uses less digits than its factorization.

612036813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6581075.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 612036813 is about 24739.3777811812. The cubic root of 612036813 is about 849.0354979116.

The spelling of 612036813 in words is "six hundred twelve million, thirty-six thousand, eight hundred thirteen".