611631463 has 4 divisors (see below), whose sum is σ = 617937040. Its totient is φ = 605325888.

The previous prime is 611631443. The next prime is 611631499. The reversal of 611631463 is 364136116.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 611631463 - 2⁹ = 611630951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (611631403) 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, 3152643 + ... + 3152836.

It is an arithmetic number, because the mean of its divisors is an integer number (154484260).

Almost surely, 2^611631463 is an apocalyptic number.

611631463 is a deficient number, since it is larger than the sum of its proper divisors (6305577).

611631463 is an equidigital number, since it uses as much as digits as its factorization.

611631463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6305576.

The product of its digits is 7776, while the sum is 31.

The square root of 611631463 is about 24731.1840193712. The cubic root of 611631463 is about 848.8480186959.

Adding to 611631463 its reverse (364136116), we get a palindrome (975767579).

It can be divided in two parts, 61163 and 1463, that added together give a palindrome (62626).

The spelling of 611631463 in words is "six hundred eleven million, six hundred thirty-one thousand, four hundred sixty-three".