890764894 has 4 divisors (see below), whose sum is σ = 1336147344. Its totient is φ = 445382446.

The previous prime is 890764891. The next prime is 890764913. The reversal of 890764894 is 498467098.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (890764891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222691222 + ... + 222691225.

It is an arithmetic number, because the mean of its divisors is an integer number (334036836).

Almost surely, 2^890764894 is an apocalyptic number.

890764894 is a deficient number, since it is larger than the sum of its proper divisors (445382450).

890764894 is a wasteful number, since it uses less digits than its factorization.

890764894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445382449.

The product of its (nonzero) digits is 3483648, while the sum is 55.

The square root of 890764894 is about 29845.6846796987. The cubic root of 890764894 is about 962.1756551262.

The spelling of 890764894 in words is "eight hundred ninety million, seven hundred sixty-four thousand, eight hundred ninety-four".