61896659 has 4 divisors (see below), whose sum is σ = 67523640. Its totient is φ = 56269680.

The previous prime is 61896649. The next prime is 61896673. The reversal of 61896659 is 95669816.

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 61896659 - 2¹⁶ = 61831123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61896629) 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, 2813474 + ... + 2813495.

It is an arithmetic number, because the mean of its divisors is an integer number (16880910).

Almost surely, 2^61896659 is an apocalyptic number.

61896659 is a deficient number, since it is larger than the sum of its proper divisors (5626981).

61896659 is a wasteful number, since it uses less digits than its factorization.

61896659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5626980.

The product of its digits is 699840, while the sum is 50.

The square root of 61896659 is about 7867.4429772322. The cubic root of 61896659 is about 395.5691394984.

The spelling of 61896659 in words is "sixty-one million, eight hundred ninety-six thousand, six hundred fifty-nine".