619466401 has 2 divisors, whose sum is σ = 619466402. Its totient is φ = 619466400.

The previous prime is 619466377. The next prime is 619466423. The reversal of 619466401 is 104664916.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 520980625 + 98485776 = 22825^2 + 9924^2 .

It is a cyclic number.

It is not a de Polignac number, because 619466401 - 2¹³ = 619458209 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (619466801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 309733200 + 309733201.

It is an arithmetic number, because the mean of its divisors is an integer number (309733201).

Almost surely, 2^619466401 is an apocalyptic number.

It is an amenable number.

619466401 is a deficient number, since it is larger than the sum of its proper divisors (1).

619466401 is an equidigital number, since it uses as much as digits as its factorization.

619466401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 619466401 is about 24889.0819637848. The cubic root of 619466401 is about 852.4572039874.

The spelling of 619466401 in words is "six hundred nineteen million, four hundred sixty-six thousand, four hundred one".