90628403 has 2 divisors, whose sum is σ = 90628404. Its totient is φ = 90628402.

The previous prime is 90628397. The next prime is 90628453. The reversal of 90628403 is 30482609.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 90628403 - 2⁴ = 90628387 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 90628403.

It is not a weakly prime, because it can be changed into another prime (90628453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45314201 + 45314202.

It is an arithmetic number, because the mean of its divisors is an integer number (45314202).

Almost surely, 2^90628403 is an apocalyptic number.

90628403 is a deficient number, since it is larger than the sum of its proper divisors (1).

90628403 is an equidigital number, since it uses as much as digits as its factorization.

90628403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 90628403 is about 9519.8951149684. The cubic root of 90628403 is about 449.1810669463.

The spelling of 90628403 in words is "ninety million, six hundred twenty-eight thousand, four hundred three".