416645377 has 4 divisors (see below), whose sum is σ = 416782080. Its totient is φ = 416508676.

The previous prime is 416645323. The next prime is 416645387. The reversal of 416645377 is 773546614.

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 416645377 - 2²³ = 408256769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (416645387) 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, 63673 + ... + 69910.

It is an arithmetic number, because the mean of its divisors is an integer number (104195520).

Almost surely, 2^416645377 is an apocalyptic number.

It is an amenable number.

416645377 is a deficient number, since it is larger than the sum of its proper divisors (136703).

416645377 is a wasteful number, since it uses less digits than its factorization.

416645377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136702.

The product of its digits is 423360, while the sum is 43.

The square root of 416645377 is about 20411.8930283303. The cubic root of 416645377 is about 746.8880698611. Note that the first 3 decimals are identical.

The spelling of 416645377 in words is "four hundred sixteen million, six hundred forty-five thousand, three hundred seventy-seven".