61698371 has 8 divisors (see below), whose sum is σ = 70613760. Its totient is φ = 52808328.

The previous prime is 61698349. The next prime is 61698379. The reversal of 61698371 is 17389616.

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 61698371 - 2¹⁸ = 61436227 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61698379) 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, 791 + ... + 11136.

It is an arithmetic number, because the mean of its divisors is an integer number (8826720).

Almost surely, 2^61698371 is an apocalyptic number.

61698371 is a deficient number, since it is larger than the sum of its proper divisors (8915389).

61698371 is a wasteful number, since it uses less digits than its factorization.

61698371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12673.

The product of its digits is 54432, while the sum is 41.

The square root of 61698371 is about 7854.8310612005. The cubic root of 61698371 is about 395.1462813437.

The spelling of 61698371 in words is "sixty-one million, six hundred ninety-eight thousand, three hundred seventy-one".