90578041 has 2 divisors, whose sum is σ = 90578042. Its totient is φ = 90578040.

The previous prime is 90578029. The next prime is 90578053. The reversal of 90578041 is 14087509.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (90578029) and next prime (90578053).

It can be written as a sum of positive squares in only one way, i.e., 58982400 + 31595641 = 7680^2 + 5621^2 .

It is a cyclic number.

It is not a de Polignac number, because 90578041 - 2⁵ = 90578009 is a prime.

It is a super-2 number, since 2×90578041² = 16408763022795362, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 90577988 and 90578006.

It is not a weakly prime, because it can be changed into another prime (90578141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45289020 + 45289021.

It is an arithmetic number, because the mean of its divisors is an integer number (45289021).

Almost surely, 2^90578041 is an apocalyptic number.

It is an amenable number.

90578041 is a deficient number, since it is larger than the sum of its proper divisors (1).

90578041 is an equidigital number, since it uses as much as digits as its factorization.

90578041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 90578041 is about 9517.2496552313. The cubic root of 90578041 is about 449.0978485597.

The spelling of 90578041 in words is "ninety million, five hundred seventy-eight thousand, forty-one".