90620419 has 2 divisors, whose sum is σ = 90620420. Its totient is φ = 90620418.

The previous prime is 90620417. The next prime is 90620449. The reversal of 90620419 is 91402609.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 90620419 - 2¹ = 90620417 is a prime.

It is a super-2 number, since 2×90620419² = 16424120679471122, which contains 22 as substring.

Together with 90620417, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (90620417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45310209 + 45310210.

It is an arithmetic number, because the mean of its divisors is an integer number (45310210).

Almost surely, 2^90620419 is an apocalyptic number.

90620419 is a deficient number, since it is larger than the sum of its proper divisors (1).

90620419 is an equidigital number, since it uses as much as digits as its factorization.

90620419 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 90620419 is about 9519.4757733816. The cubic root of 90620419 is about 449.1678762069.

The spelling of 90620419 in words is "ninety million, six hundred twenty thousand, four hundred nineteen".