94661820 has 72 divisors (see below), whose sum is σ = 313251120. Its totient is φ = 22947840.

The previous prime is 94661773. The next prime is 94661839. The reversal of 94661820 is 2816649.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21925 + ... + 25884.

It is an arithmetic number, because the mean of its divisors is an integer number (4350710).

Almost surely, 2^94661820 is an apocalyptic number.

94661820 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

94661820 is an abundant number, since it is smaller than the sum of its proper divisors (218589300).

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

94661820 is a wasteful number, since it uses less digits than its factorization.

94661820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47835 (or 47830 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 94661820 is about 9729.4306102670. The cubic root of 94661820 is about 455.7481873776.

It can be divided in two parts, 94661 and 820, that added together give a square (95481 = 309²).

The spelling of 94661820 in words is "ninety-four million, six hundred sixty-one thousand, eight hundred twenty".