61632489 has 8 divisors (see below), whose sum is σ = 82590400. Its totient is φ = 40881456.

The previous prime is 61632469. The next prime is 61632499. The reversal of 61632489 is 98423616.

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

It is not a de Polignac number, because 61632489 - 2¹¹ = 61630441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61632469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51022 + ... + 52215.

It is an arithmetic number, because the mean of its divisors is an integer number (10323800).

Almost surely, 2^61632489 is an apocalyptic number.

It is an amenable number.

61632489 is a deficient number, since it is larger than the sum of its proper divisors (20957911).

61632489 is a wasteful number, since it uses less digits than its factorization.

61632489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103439.

The product of its digits is 62208, while the sum is 39.

The square root of 61632489 is about 7850.6362162566. The cubic root of 61632489 is about 395.0055844962.

The spelling of 61632489 in words is "sixty-one million, six hundred thirty-two thousand, four hundred eighty-nine".