1634655485 has 8 divisors (see below), whose sum is σ = 2076974136. Its totient is φ = 1230799360.

The previous prime is 1634655467. The next prime is 1634655487. The reversal of 1634655485 is 5845564361.

It can be written as a sum of positive squares in 4 ways, for example, as 707879236 + 926776249 = 26606^2 + 30443^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-1634655485 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 (1634655487) 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, 9615536 + ... + 9615705.

It is an arithmetic number, because the mean of its divisors is an integer number (259621767).

Almost surely, 2^1634655485 is an apocalyptic number.

It is an amenable number.

1634655485 is a deficient number, since it is larger than the sum of its proper divisors (442318651).

1634655485 is a wasteful number, since it uses less digits than its factorization.

1634655485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19231263.

The product of its digits is 1728000, while the sum is 47.

The square root of 1634655485 is about 40430.8729190949. The cubic root of 1634655485 is about 1177.9912882981.

The spelling of 1634655485 in words is "one billion, six hundred thirty-four million, six hundred fifty-five thousand, four hundred eighty-five".