90620071 has 2 divisors, whose sum is σ = 90620072. Its totient is φ = 90620070.

The previous prime is 90620059. The next prime is 90620087. The reversal of 90620071 is 17002609.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 90620071 - 2⁵ = 90620039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90620021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45310035 + 45310036.

It is an arithmetic number, because the mean of its divisors is an integer number (45310036).

Almost surely, 2^90620071 is an apocalyptic number.

90620071 is a deficient number, since it is larger than the sum of its proper divisors (1).

90620071 is an equidigital number, since it uses as much as digits as its factorization.

90620071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 90620071 is about 9519.4574950467. The cubic root of 90620071 is about 449.1673012422.

The spelling of 90620071 in words is "ninety million, six hundred twenty thousand, seventy-one".