84157903 has 2 divisors, whose sum is σ = 84157904. Its totient is φ = 84157902.

The previous prime is 84157889. The next prime is 84157949. The reversal of 84157903 is 30975148.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84157903 is a prime.

It is a super-3 number, since 3×84157903³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84158903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42078951 + 42078952.

It is an arithmetic number, because the mean of its divisors is an integer number (42078952).

Almost surely, 2^84157903 is an apocalyptic number.

84157903 is a deficient number, since it is larger than the sum of its proper divisors (1).

84157903 is an equidigital number, since it uses as much as digits as its factorization.

84157903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 84157903 is about 9173.7616603005. The cubic root of 84157903 is about 438.2261625383.

The spelling of 84157903 in words is "eighty-four million, one hundred fifty-seven thousand, nine hundred three".