61965711 has 12 divisors (see below), whose sum is σ = 89577280. Its totient is φ = 41277600.

The previous prime is 61965689. The next prime is 61965773. The reversal of 61965711 is 11756916.

It is a happy number.

It is not a de Polignac number, because 61965711 - 2⁶ = 61965647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61965781) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15795 + ... + 19323.

Almost surely, 2^61965711 is an apocalyptic number.

61965711 is a deficient number, since it is larger than the sum of its proper divisors (27611569).

61965711 is a wasteful number, since it uses less digits than its factorization.

61965711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5486 (or 5483 counting only the distinct ones).

The product of its digits is 11340, while the sum is 36.

The square root of 61965711 is about 7871.8302192057. The cubic root of 61965711 is about 395.7161839941.

The spelling of 61965711 in words is "sixty-one million, nine hundred sixty-five thousand, seven hundred eleven".