61344687 has 8 divisors (see below), whose sum is σ = 86604336. Its totient is φ = 38490752.

The previous prime is 61344593. The next prime is 61344713. The reversal of 61344687 is 78644316.

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 61344687 - 2¹⁴ = 61328303 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61344587) 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, 601368 + ... + 601469.

It is an arithmetic number, because the mean of its divisors is an integer number (10825542).

Almost surely, 2^61344687 is an apocalyptic number.

61344687 is a deficient number, since it is larger than the sum of its proper divisors (25259649).

61344687 is a wasteful number, since it uses less digits than its factorization.

61344687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1202857.

The product of its digits is 96768, while the sum is 39.

The square root of 61344687 is about 7832.2849156552. The cubic root of 61344687 is about 394.3897793509.

The spelling of 61344687 in words is "sixty-one million, three hundred forty-four thousand, six hundred eighty-seven".