94031621 has 2 divisors, whose sum is σ = 94031622. Its totient is φ = 94031620.

The previous prime is 94031599. The next prime is 94031647. The reversal of 94031621 is 12613049.

It is an a-pointer prime, because the next prime (94031647) can be obtained adding 94031621 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61701025 + 32330596 = 7855^2 + 5686^2 .

It is an emirp because it is prime and its reverse (12613049) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 94031621 - 2¹⁸ = 93769477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (94031681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47015810 + 47015811.

It is an arithmetic number, because the mean of its divisors is an integer number (47015811).

Almost surely, 2^94031621 is an apocalyptic number.

It is an amenable number.

94031621 is a deficient number, since it is larger than the sum of its proper divisors (1).

94031621 is an equidigital number, since it uses as much as digits as its factorization.

94031621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 94031621 is about 9696.9903062754. The cubic root of 94031621 is about 454.7345728814.

The spelling of 94031621 in words is "ninety-four million, thirty-one thousand, six hundred twenty-one".