61622868 has 24 divisors (see below), whose sum is σ = 144027072. Its totient is φ = 20506624.

The previous prime is 61622867. The next prime is 61622879. The reversal of 61622868 is 86822616.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61622861) 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, 3796 + ... + 11732.

It is an arithmetic number, because the mean of its divisors is an integer number (6001128).

Almost surely, 2^61622868 is an apocalyptic number.

It is an amenable number.

61622868 is an abundant number, since it is smaller than the sum of its proper divisors (82404204).

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

61622868 is a wasteful number, since it uses less digits than its factorization.

61622868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8591 (or 8589 counting only the distinct ones).

The product of its digits is 55296, while the sum is 39.

The square root of 61622868 is about 7850.0234394555. The cubic root of 61622868 is about 394.9850296094.

The spelling of 61622868 in words is "sixty-one million, six hundred twenty-two thousand, eight hundred sixty-eight".