90858356 has 6 divisors (see below), whose sum is σ = 159002130. Its totient is φ = 45429176.

The previous prime is 90858343. The next prime is 90858359. The reversal of 90858356 is 65385809.

It can be written as a sum of positive squares in only one way, i.e., 72931600 + 17926756 = 8540^2 + 4234^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90858359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11357291 + ... + 11357298.

It is an arithmetic number, because the mean of its divisors is an integer number (26500355).

Almost surely, 2^90858356 is an apocalyptic number.

It is an amenable number.

90858356 is a deficient number, since it is larger than the sum of its proper divisors (68143774).

90858356 is a wasteful number, since it uses less digits than its factorization.

90858356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22714593 (or 22714591 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 44.

The square root of 90858356 is about 9531.9649600699. The cubic root of 90858356 is about 449.5606510249.

The spelling of 90858356 in words is "ninety million, eight hundred fifty-eight thousand, three hundred fifty-six".