61985946 has 16 divisors (see below), whose sum is σ = 135242208. Its totient is φ = 18783600.

The previous prime is 61985941. The next prime is 61985951. The reversal of 61985946 is 64958916.

It is an interprime number because it is at equal distance from previous prime (61985941) and next prime (61985951).

It is a junction number, because it is equal to n+sod(n) for n = 61985895 and 61985904.

It is not an unprimeable number, because it can be changed into a prime (61985941) 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, 469525 + ... + 469656.

It is an arithmetic number, because the mean of its divisors is an integer number (8452638).

Almost surely, 2^61985946 is an apocalyptic number.

61985946 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

61985946 is an abundant number, since it is smaller than the sum of its proper divisors (73256262).

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

61985946 is a wasteful number, since it uses less digits than its factorization.

61985946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 939197.

The product of its digits is 466560, while the sum is 48.

The square root of 61985946 is about 7873.1153935402. The cubic root of 61985946 is about 395.7592532196.

The spelling of 61985946 in words is "sixty-one million, nine hundred eighty-five thousand, nine hundred forty-six".