461897619 has 16 divisors (see below), whose sum is σ = 650820480. Its totient is φ = 290580480.

The previous prime is 461897563. The next prime is 461897621. The reversal of 461897619 is 916798164.

It is a happy number.

It is not a de Polignac number, because 461897619 - 2¹⁹ = 461373331 is a prime.

It is a super-2 number, since 2×461897619² = 426698820875738322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (461897119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1117 + ... + 30414.

It is an arithmetic number, because the mean of its divisors is an integer number (40676280).

Almost surely, 2^461897619 is an apocalyptic number.

461897619 is a deficient number, since it is larger than the sum of its proper divisors (188922861).

461897619 is a wasteful number, since it uses less digits than its factorization.

461897619 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31810.

The product of its digits is 653184, while the sum is 51.

The square root of 461897619 is about 21491.8035306486. The cubic root of 461897619 is about 773.0042965598.

The spelling of 461897619 in words is "four hundred sixty-one million, eight hundred ninety-seven thousand, six hundred nineteen".