90621119 has 2 divisors, whose sum is σ = 90621120. Its totient is φ = 90621118.

The previous prime is 90621079. The next prime is 90621131. The reversal of 90621119 is 91112609.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 90621119 - 2²⁰ = 89572543 is a prime.

It is a super-2 number, since 2×90621119² = 16424374417624322, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 90621091 and 90621100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90621199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45310559 + 45310560.

It is an arithmetic number, because the mean of its divisors is an integer number (45310560).

Almost surely, 2^90621119 is an apocalyptic number.

90621119 is a deficient number, since it is larger than the sum of its proper divisors (1).

90621119 is an equidigital number, since it uses as much as digits as its factorization.

90621119 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 29.

The square root of 90621119 is about 9519.5125400411. The cubic root of 90621119 is about 449.1690327406.

The spelling of 90621119 in words is "ninety million, six hundred twenty-one thousand, one hundred nineteen".