61858065 has 8 divisors (see below), whose sum is σ = 98972928. Its totient is φ = 32990960.

The previous prime is 61858061. The next prime is 61858067. The reversal of 61858065 is 56085816.

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

It is not a de Polignac number, because 61858065 - 2² = 61858061 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61858061) 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, 2061921 + ... + 2061950.

It is an arithmetic number, because the mean of its divisors is an integer number (12371616).

Almost surely, 2^61858065 is an apocalyptic number.

It is an amenable number.

61858065 is a deficient number, since it is larger than the sum of its proper divisors (37114863).

61858065 is a wasteful number, since it uses less digits than its factorization.

61858065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4123879.

The product of its (nonzero) digits is 57600, while the sum is 39.

The square root of 61858065 is about 7864.9898283469. The cubic root of 61858065 is about 395.4869068990.

The spelling of 61858065 in words is "sixty-one million, eight hundred fifty-eight thousand, sixty-five".