90667474 has 4 divisors (see below), whose sum is σ = 136001214. Its totient is φ = 45333736.

The previous prime is 90667453. The next prime is 90667519. The reversal of 90667474 is 47476609.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 54125449 + 36542025 = 7357^2 + 6045^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 90667474.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22666867 + ... + 22666870.

Almost surely, 2^90667474 is an apocalyptic number.

90667474 is a deficient number, since it is larger than the sum of its proper divisors (45333740).

90667474 is a wasteful number, since it uses less digits than its factorization.

90667474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45333739.

The product of its (nonzero) digits is 254016, while the sum is 43.

The square root of 90667474 is about 9521.9469647756. The cubic root of 90667474 is about 449.2456068017.

The spelling of 90667474 in words is "ninety million, six hundred sixty-seven thousand, four hundred seventy-four".