83480857 has 2 divisors, whose sum is σ = 83480858. Its totient is φ = 83480856.

The previous prime is 83480827. The next prime is 83480867. The reversal of 83480857 is 75808438.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48149721 + 35331136 = 6939^2 + 5944^2 .

It is a cyclic number.

It is not a de Polignac number, because 83480857 - 2⁷ = 83480729 is a prime.

It is a super-3 number, since 3×83480857³ (a number of 25 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (83480807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41740428 + 41740429.

It is an arithmetic number, because the mean of its divisors is an integer number (41740429).

Almost surely, 2^83480857 is an apocalyptic number.

It is an amenable number.

83480857 is a deficient number, since it is larger than the sum of its proper divisors (1).

83480857 is an equidigital number, since it uses as much as digits as its factorization.

83480857 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 215040, while the sum is 43.

The square root of 83480857 is about 9136.7859228506. The cubic root of 83480857 is about 437.0478280087.

The spelling of 83480857 in words is "eighty-three million, four hundred eighty thousand, eight hundred fifty-seven".