890047023731 has 4 divisors (see below), whose sum is σ = 892112098464. Its totient is φ = 887981949000.

The previous prime is 890047023727. The next prime is 890047023737. The reversal of 890047023731 is 137320740098.

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

It is a cyclic number.

It is not a de Polignac number, because 890047023731 - 2² = 890047023727 is a prime.

It is a super-2 number, since 2×890047023731² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (890047023737) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1032536720 + ... + 1032537581.

It is an arithmetic number, because the mean of its divisors is an integer number (223028024616).

Almost surely, 2^890047023731 is an apocalyptic number.

890047023731 is a deficient number, since it is larger than the sum of its proper divisors (2065074733).

890047023731 is a wasteful number, since it uses less digits than its factorization.

890047023731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2065074732.

The product of its (nonzero) digits is 254016, while the sum is 44.

The spelling of 890047023731 in words is "eight hundred ninety billion, forty-seven million, twenty-three thousand, seven hundred thirty-one".