61598065 has 8 divisors (see below), whose sum is σ = 75170880. Its totient is φ = 48442992.

The previous prime is 61598027. The next prime is 61598099. The reversal of 61598065 is 56089516.

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

It is a cyclic number.

It is not a de Polignac number, because 61598065 - 2⁹ = 61597553 is a prime.

It is a super-2 number, since 2×61598065² = 7588643223488450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104109 + ... + 104698.

It is an arithmetic number, because the mean of its divisors is an integer number (9396360).

Almost surely, 2^61598065 is an apocalyptic number.

It is an amenable number.

61598065 is a deficient number, since it is larger than the sum of its proper divisors (13572815).

61598065 is a wasteful number, since it uses less digits than its factorization.

61598065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208871.

The product of its (nonzero) digits is 64800, while the sum is 40.

The square root of 61598065 is about 7848.4434762569. The cubic root of 61598065 is about 394.9320291098.

The spelling of 61598065 in words is "sixty-one million, five hundred ninety-eight thousand, sixty-five".