90620722 has 4 divisors (see below), whose sum is σ = 135931086. Its totient is φ = 45310360.

The previous prime is 90620711. The next prime is 90620743. The reversal of 90620722 is 22702609.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22702609 = 257 ⋅88337.

It can be written as a sum of positive squares in only one way, i.e., 61449921 + 29170801 = 7839^2 + 5401^2 .

It is an unprimeable number.

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, 22655179 + ... + 22655182.

Almost surely, 2^90620722 is an apocalyptic number.

90620722 is a deficient number, since it is larger than the sum of its proper divisors (45310364).

90620722 is a wasteful number, since it uses less digits than its factorization.

90620722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45310363.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 90620722 is about 9519.4916881102. The cubic root of 90620722 is about 449.1683768215.

The spelling of 90620722 in words is "ninety million, six hundred twenty thousand, seven hundred twenty-two".