85820954 has 8 divisors (see below), whose sum is σ = 131871348. Its totient is φ = 41863840.

The previous prime is 85820951. The next prime is 85820957. The reversal of 85820954 is 45902858.

It is an interprime number because it is at equal distance from previous prime (85820951) and next prime (85820957).

It can be written as a sum of positive squares in 2 ways, for example, as 84143929 + 1677025 = 9173^2 + 1295^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×85820954² = 14730472290940232, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (85820951) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 523217 + ... + 523380.

Almost surely, 2^85820954 is an apocalyptic number.

85820954 is a deficient number, since it is larger than the sum of its proper divisors (46050394).

85820954 is a wasteful number, since it uses less digits than its factorization.

85820954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1046640.

The product of its (nonzero) digits is 115200, while the sum is 41.

The square root of 85820954 is about 9263.9599524178. The cubic root of 85820954 is about 441.0939617386.

It can be divided in two parts, 858 and 20954, that added together give a palindrome (21812).

The spelling of 85820954 in words is "eighty-five million, eight hundred twenty thousand, nine hundred fifty-four".