83430401 has 2 divisors, whose sum is σ = 83430402. Its totient is φ = 83430400.

The previous prime is 83430383. The next prime is 83430433. The reversal of 83430401 is 10403438.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68492176 + 14938225 = 8276^2 + 3865^2 .

It is a cyclic number.

It is not a de Polignac number, because 83430401 - 2⁶ = 83430337 is a prime.

It is a super-2 number, since 2×83430401² = 13921263622041602, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (83430481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41715200 + 41715201.

It is an arithmetic number, because the mean of its divisors is an integer number (41715201).

Almost surely, 2^83430401 is an apocalyptic number.

It is an amenable number.

83430401 is a deficient number, since it is larger than the sum of its proper divisors (1).

83430401 is an equidigital number, since it uses as much as digits as its factorization.

83430401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 83430401 is about 9134.0243595033. The cubic root of 83430401 is about 436.9597593975.

Adding to 83430401 its reverse (10403438), we get a palindrome (93833839).

The spelling of 83430401 in words is "eighty-three million, four hundred thirty thousand, four hundred one".