85457423 has 2 divisors, whose sum is σ = 85457424. Its totient is φ = 85457422.

The previous prime is 85457399. The next prime is 85457447. The reversal of 85457423 is 32475458.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (85457399) and next prime (85457447).

It is a cyclic number.

It is not a de Polignac number, because 85457423 - 2¹² = 85453327 is a prime.

It is a super-2 number, since 2×85457423² = 14605942291601858, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85457023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42728711 + 42728712.

It is an arithmetic number, because the mean of its divisors is an integer number (42728712).

Almost surely, 2^85457423 is an apocalyptic number.

85457423 is a deficient number, since it is larger than the sum of its proper divisors (1).

85457423 is an equidigital number, since it uses as much as digits as its factorization.

85457423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 134400, while the sum is 38.

The square root of 85457423 is about 9244.3184172766. The cubic root of 85457423 is about 440.4702668334.

The spelling of 85457423 in words is "eighty-five million, four hundred fifty-seven thousand, four hundred twenty-three".