84442951 has 2 divisors, whose sum is σ = 84442952. Its totient is φ = 84442950.

The previous prime is 84442937. The next prime is 84442957. The reversal of 84442951 is 15924448.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 84442951 - 2¹⁷ = 84311879 is a prime.

It is a super-2 number, since 2×84442951² = 14261223947176802, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 84442951.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84442957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42221475 + 42221476.

It is an arithmetic number, because the mean of its divisors is an integer number (42221476).

Almost surely, 2^84442951 is an apocalyptic number.

84442951 is a deficient number, since it is larger than the sum of its proper divisors (1).

84442951 is an equidigital number, since it uses as much as digits as its factorization.

84442951 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46080, while the sum is 37.

The square root of 84442951 is about 9189.2845749819. The cubic root of 84442951 is about 438.7203713187.

The spelling of 84442951 in words is "eighty-four million, four hundred forty-two thousand, nine hundred fifty-one".