61694889 has 8 divisors (see below), whose sum is σ = 83184480. Its totient is φ = 40667616.

The previous prime is 61694839. The next prime is 61694909. The reversal of 61694889 is 98849616.

It is a happy number.

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

It is not a de Polignac number, because 61694889 - 2¹⁵ = 61662121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61694839) 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, 115267 + ... + 115800.

It is an arithmetic number, because the mean of its divisors is an integer number (10398060).

Almost surely, 2^61694889 is an apocalyptic number.

It is an amenable number.

61694889 is a deficient number, since it is larger than the sum of its proper divisors (21489591).

61694889 is a wasteful number, since it uses less digits than its factorization.

61694889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231159.

The product of its digits is 746496, while the sum is 51.

The square root of 61694889 is about 7854.6094110401. The cubic root of 61694889 is about 395.1388477318.

The spelling of 61694889 in words is "sixty-one million, six hundred ninety-four thousand, eight hundred eighty-nine".