61789650 has 48 divisors (see below), whose sum is σ = 165031104. Its totient is φ = 15209280.

The previous prime is 61789649. The next prime is 61789657. The reversal of 61789650 is 5698716.

It is not an unprimeable number, because it can be changed into a prime (61789657) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13894 + ... + 17793.

It is an arithmetic number, because the mean of its divisors is an integer number (3438148).

Almost surely, 2^61789650 is an apocalyptic number.

61789650 is an abundant number, since it is smaller than the sum of its proper divisors (103241454).

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

61789650 is a wasteful number, since it uses less digits than its factorization.

61789650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31715 (or 31710 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 61789650 is about 7860.6392869791. The cubic root of 61789650 is about 395.3410503160.

The spelling of 61789650 in words is "sixty-one million, seven hundred eighty-nine thousand, six hundred fifty".