989025946 has 8 divisors (see below), whose sum is σ = 1496667924. Its totient is φ = 490136640.

The previous prime is 989025941. The next prime is 989025959. The reversal of 989025946 is 649520989.

It can be written as a sum of positive squares in 2 ways, for example, as 821452921 + 167573025 = 28661^2 + 12945^2 .

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

It is a super-2 number, since 2×989025946² = 1956344643722389832, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 989025893 and 989025902.

It is not an unprimeable number, because it can be changed into a prime (989025941) 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, 2187885 + ... + 2188336.

Almost surely, 2^989025946 is an apocalyptic number.

989025946 is a deficient number, since it is larger than the sum of its proper divisors (507641978).

989025946 is a wasteful number, since it uses less digits than its factorization.

989025946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4376336.

The product of its (nonzero) digits is 1399680, while the sum is 52.

The square root of 989025946 is about 31448.7829017277. The cubic root of 989025946 is about 996.3285187221.

The spelling of 989025946 in words is "nine hundred eighty-nine million, twenty-five thousand, nine hundred forty-six".