612463669 has 2 divisors, whose sum is σ = 612463670. Its totient is φ = 612463668.

The previous prime is 612463667. The next prime is 612463681. The reversal of 612463669 is 966364216.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 535691025 + 76772644 = 23145^2 + 8762^2 .

It is a cyclic number.

It is not a de Polignac number, because 612463669 - 2¹ = 612463667 is a prime.

It is a super-2 number, since 2×612463669² = 750223491689883122, which contains 22 as substring.

Together with 612463667, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (612463667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306231834 + 306231835.

It is an arithmetic number, because the mean of its divisors is an integer number (306231835).

Almost surely, 2^612463669 is an apocalyptic number.

It is an amenable number.

612463669 is a deficient number, since it is larger than the sum of its proper divisors (1).

612463669 is an equidigital number, since it uses as much as digits as its factorization.

612463669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 279936, while the sum is 43.

The square root of 612463669 is about 24748.0033336025. The cubic root of 612463669 is about 849.2328344484.

The spelling of 612463669 in words is "six hundred twelve million, four hundred sixty-three thousand, six hundred sixty-nine".