61711672 has 32 divisors (see below), whose sum is σ = 126593280. Its totient is φ = 27969760.

The previous prime is 61711667. The next prime is 61711693. The reversal of 61711672 is 27611716.

It is a super-2 number, since 2×61711672² = 7616660922071168, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38193 + ... + 39775.

It is an arithmetic number, because the mean of its divisors is an integer number (3956040).

Almost surely, 2^61711672 is an apocalyptic number.

It is an amenable number.

61711672 is an abundant number, since it is smaller than the sum of its proper divisors (64881608).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61711672 is a wasteful number, since it uses less digits than its factorization.

61711672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2043 (or 2039 counting only the distinct ones).

The product of its digits is 3528, while the sum is 31.

The square root of 61711672 is about 7855.6776919627. The cubic root of 61711672 is about 395.1746746544.

The spelling of 61711672 in words is "sixty-one million, seven hundred eleven thousand, six hundred seventy-two".