900061894 has 4 divisors (see below), whose sum is σ = 1350092844. Its totient is φ = 450030946.

The previous prime is 900061859. The next prime is 900061909. The reversal of 900061894 is 498160009.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 498160009 = 7411 ⋅67219.

It is a super-2 number, since 2×900061894² = 1620222826061734472, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225015472 + ... + 225015475.

It is an arithmetic number, because the mean of its divisors is an integer number (337523211).

Almost surely, 2^900061894 is an apocalyptic number.

900061894 is a deficient number, since it is larger than the sum of its proper divisors (450030950).

900061894 is a wasteful number, since it uses less digits than its factorization.

900061894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450030949.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 900061894 is about 30001.0315489318. The cubic root of 900061894 is about 965.5115166909.

The spelling of 900061894 in words is "nine hundred million, sixty-one thousand, eight hundred ninety-four".