61621695 has 16 divisors (see below), whose sum is σ = 109549920. Its totient is φ = 32864832.

The previous prime is 61621673. The next prime is 61621699. The reversal of 61621695 is 59612616.

It is not a de Polignac number, because 61621695 - 2⁵ = 61621663 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61621699) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 228094 + ... + 228363.

It is an arithmetic number, because the mean of its divisors is an integer number (6846870).

Almost surely, 2^61621695 is an apocalyptic number.

61621695 is a deficient number, since it is larger than the sum of its proper divisors (47928225).

61621695 is a wasteful number, since it uses less digits than its factorization.

61621695 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456471 (or 456465 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 61621695 is about 7849.9487259472. The cubic root of 61621695 is about 394.9825233949.

The spelling of 61621695 in words is "sixty-one million, six hundred twenty-one thousand, six hundred ninety-five".