85450491 has 32 divisors (see below), whose sum is σ = 145152000. Its totient is φ = 48669120.

The previous prime is 85450489. The next prime is 85450493. The reversal of 85450491 is 19405458.

It is an interprime number because it is at equal distance from previous prime (85450489) and next prime (85450493).

It is not a de Polignac number, because 85450491 - 2¹ = 85450489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85450493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 80935 + ... + 81983.

It is an arithmetic number, because the mean of its divisors is an integer number (4536000).

Almost surely, 2^85450491 is an apocalyptic number.

85450491 is a deficient number, since it is larger than the sum of its proper divisors (59701509).

85450491 is a wasteful number, since it uses less digits than its factorization.

85450491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1496 (or 1490 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The square root of 85450491 is about 9243.9434766770. The cubic root of 85450491 is about 440.4583567213.

The spelling of 85450491 in words is "eighty-five million, four hundred fifty thousand, four hundred ninety-one".