61943465 has 4 divisors (see below), whose sum is σ = 74332164. Its totient is φ = 49554768.

The previous prime is 61943447. The next prime is 61943467. The reversal of 61943465 is 56434916.

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

It can be written as a sum of positive squares in 2 ways, for example, as 46348864 + 15594601 = 6808^2 + 3949^2 .

It is a cyclic number.

It is not a de Polignac number, because 61943465 - 2¹⁴ = 61927081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61943467) 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, 6194342 + ... + 6194351.

It is an arithmetic number, because the mean of its divisors is an integer number (18583041).

Almost surely, 2^61943465 is an apocalyptic number.

It is an amenable number.

61943465 is a deficient number, since it is larger than the sum of its proper divisors (12388699).

61943465 is a wasteful number, since it uses less digits than its factorization.

61943465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12388698.

The product of its digits is 77760, while the sum is 38.

The square root of 61943465 is about 7870.4170791642. The cubic root of 61943465 is about 395.6688236301.

The spelling of 61943465 in words is "sixty-one million, nine hundred forty-three thousand, four hundred sixty-five".