90672385 has 8 divisors (see below), whose sum is σ = 111747816. Its totient is φ = 70577280.

The previous prime is 90672383. The next prime is 90672401. The reversal of 90672385 is 58327609.

It can be written as a sum of positive squares in 4 ways, for example, as 57942544 + 32729841 = 7612^2 + 5721^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 90672385 - 2¹ = 90672383 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90672383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 244876 + ... + 245245.

It is an arithmetic number, because the mean of its divisors is an integer number (13968477).

Almost surely, 2^90672385 is an apocalyptic number.

It is an amenable number.

90672385 is a deficient number, since it is larger than the sum of its proper divisors (21075431).

90672385 is a wasteful number, since it uses less digits than its factorization.

90672385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490163.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 90672385 is about 9522.2048392166. The cubic root of 90672385 is about 449.2537177786.

The spelling of 90672385 in words is "ninety million, six hundred seventy-two thousand, three hundred eighty-five".