61617086 has 8 divisors (see below), whose sum is σ = 93805320. Its totient is φ = 30348648.

The previous prime is 61617079. The next prime is 61617109. The reversal of 61617086 is 68071616.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 229781 + ... + 230048.

It is an arithmetic number, because the mean of its divisors is an integer number (11725665).

Almost surely, 2^61617086 is an apocalyptic number.

61617086 is a deficient number, since it is larger than the sum of its proper divisors (32188234).

61617086 is a wasteful number, since it uses less digits than its factorization.

61617086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459898.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 61617086 is about 7849.6551516611. The cubic root of 61617086 is about 394.9726755654.

The spelling of 61617086 in words is "sixty-one million, six hundred seventeen thousand, eighty-six".