612086949 has 10 divisors (see below), whose sum is σ = 914352230. Its totient is φ = 408057912.

The previous prime is 612086947. The next prime is 612086977. The reversal of 612086949 is 949680216.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 316590849 + 295496100 = 17793^2 + 17190^2 .

It is not a de Polignac number, because 612086949 - 2¹ = 612086947 is a prime.

It is a super-2 number, since 2×612086949² = 749300866272257202, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612086941) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 3778234 + ... + 3778395.

It is an arithmetic number, because the mean of its divisors is an integer number (91435223).

Almost surely, 2^612086949 is an apocalyptic number.

It is an amenable number.

612086949 is a deficient number, since it is larger than the sum of its proper divisors (302265281).

612086949 is an equidigital number, since it uses as much as digits as its factorization.

612086949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7556641 (or 7556632 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 612086949 is about 24740.3910437972. The cubic root of 612086949 is about 849.0586806573.

The spelling of 612086949 in words is "six hundred twelve million, eighty-six thousand, nine hundred forty-nine".