83616451 has 2 divisors, whose sum is σ = 83616452. Its totient is φ = 83616450.

The previous prime is 83616433. The next prime is 83616499. The reversal of 83616451 is 15461638.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 83616451 - 2¹⁵ = 83583683 is a prime.

It is not a weakly prime, because it can be changed into another prime (83616151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41808225 + 41808226.

It is an arithmetic number, because the mean of its divisors is an integer number (41808226).

Almost surely, 2^83616451 is an apocalyptic number.

83616451 is a deficient number, since it is larger than the sum of its proper divisors (1).

83616451 is an equidigital number, since it uses as much as digits as its factorization.

83616451 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17280, while the sum is 34.

The square root of 83616451 is about 9144.2031364138. The cubic root of 83616451 is about 437.2843253697.

The spelling of 83616451 in words is "eighty-three million, six hundred sixteen thousand, four hundred fifty-one".