90861030 has 48 divisors (see below), whose sum is σ = 254414160. Its totient is φ = 22365504.

The previous prime is 90861019. The next prime is 90861041. The reversal of 90861030 is 3016809.

It is an interprime number because it is at equal distance from previous prime (90861019) and next prime (90861041).

It is a junction number, because it is equal to n+sod(n) for n = 90860985 and 90861003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37660 + ... + 39999.

It is an arithmetic number, because the mean of its divisors is an integer number (5300295).

Almost surely, 2^90861030 is an apocalyptic number.

90861030 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

90861030 is an abundant number, since it is smaller than the sum of its proper divisors (163553130).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90861030 is a wasteful number, since it uses less digits than its factorization.

90861030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77685 (or 77682 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 90861030 is about 9532.1052239261. The cubic root of 90861030 is about 449.5650612353.

Adding to 90861030 its reverse (3016809), we get a palindrome (93877839).

The spelling of 90861030 in words is "ninety million, eight hundred sixty-one thousand, thirty".