634477 has 8 divisors (see below), whose sum is σ = 664832. Its totient is φ = 604800.

The previous prime is 634471. The next prime is 634483. The reversal of 634477 is 774436.

It is an interprime number because it is at equal distance from previous prime (634471) and next prime (634483).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-634477 is a prime.

It is a super-2 number, since 2×634477² = 805122127058, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

634477 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634471) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2902 + ... + 3112.

It is an arithmetic number, because the mean of its divisors is an integer number (83104).

2⁶³⁴⁴⁷⁷ is an apocalyptic number.

It is an amenable number.

634477 is a deficient number, since it is larger than the sum of its proper divisors (30355).

634477 is a wasteful number, since it uses less digits than its factorization.

634477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339.

The product of its digits is 14112, while the sum is 31.

The square root of 634477 is about 796.5406455417. The cubic root of 634477 is about 85.9287764368.

It can be divided in two parts, 634 and 477, that added together give a palindrome (1111).

The spelling of 634477 in words is "six hundred thirty-four thousand, four hundred seventy-seven".