61669327 has 4 divisors (see below), whose sum is σ = 61782616. Its totient is φ = 61556040.

The previous prime is 61669313. The next prime is 61669339. The reversal of 61669327 is 72396616.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61669327 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61669327.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61669397) 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, 55824 + ... + 56917.

It is an arithmetic number, because the mean of its divisors is an integer number (15445654).

Almost surely, 2^61669327 is an apocalyptic number.

61669327 is a deficient number, since it is larger than the sum of its proper divisors (113289).

61669327 is a wasteful number, since it uses less digits than its factorization.

61669327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113288.

The product of its digits is 81648, while the sum is 40.

The square root of 61669327 is about 7852.9820450578. The cubic root of 61669327 is about 395.0842676594.

The spelling of 61669327 in words is "sixty-one million, six hundred sixty-nine thousand, three hundred twenty-seven".