412626661 has 4 divisors (see below), whose sum is σ = 412725024. Its totient is φ = 412528300.

The previous prime is 412626649. The next prime is 412626689. The reversal of 412626661 is 166626214.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 412626661 - 2¹³ = 412618469 is a prime.

It is a super-2 number, since 2×412626661² = 340521522736017842, 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 (412626691) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42595 + ... + 51376.

It is an arithmetic number, because the mean of its divisors is an integer number (103181256).

Almost surely, 2^412626661 is an apocalyptic number.

It is an amenable number.

412626661 is a deficient number, since it is larger than the sum of its proper divisors (98363).

412626661 is an equidigital number, since it uses as much as digits as its factorization.

412626661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98362.

The product of its digits is 20736, while the sum is 34.

The square root of 412626661 is about 20313.2139505298. The cubic root of 412626661 is about 744.4789600335.

The spelling of 412626661 in words is "four hundred twelve million, six hundred twenty-six thousand, six hundred sixty-one".