61946620 has 24 divisors (see below), whose sum is σ = 130317264. Its totient is φ = 24734976.

The previous prime is 61946609. The next prime is 61946627. The reversal of 61946620 is 2664916.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61946627) 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, 10452 + ... + 15268.

It is an arithmetic number, because the mean of its divisors is an integer number (5429886).

Almost surely, 2^61946620 is an apocalyptic number.

It is an amenable number.

61946620 is an abundant number, since it is smaller than the sum of its proper divisors (68370644).

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

61946620 is a wasteful number, since it uses less digits than its factorization.

61946620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5469 (or 5467 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 61946620 is about 7870.6175107167. The cubic root of 61946620 is about 395.6755411207.

The spelling of 61946620 in words is "sixty-one million, nine hundred forty-six thousand, six hundred twenty".