612170493 has 24 divisors (see below), whose sum is σ = 945903840. Its totient is φ = 349182720.

The previous prime is 612170473. The next prime is 612170539. The reversal of 612170493 is 394071216.

It is not a de Polignac number, because 612170493 - 2¹² = 612166397 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612170413) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22558 + ... + 41631.

It is an arithmetic number, because the mean of its divisors is an integer number (39412660).

Almost surely, 2^612170493 is an apocalyptic number.

It is an amenable number.

612170493 is a deficient number, since it is larger than the sum of its proper divisors (333733347).

612170493 is a wasteful number, since it uses less digits than its factorization.

612170493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64237 (or 64220 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 612170493 is about 24742.0793992744. The cubic root of 612170493 is about 849.0973083564.

The spelling of 612170493 in words is "six hundred twelve million, one hundred seventy thousand, four hundred ninety-three".