981764954 has 4 divisors (see below), whose sum is σ = 1472647434. Its totient is φ = 490882476.

The previous prime is 981764921. The next prime is 981764969. The reversal of 981764954 is 459467189.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 459467189 = 61 ⋅7532249.

It can be written as a sum of positive squares in only one way, i.e., 932386225 + 49378729 = 30535^2 + 7027^2 .

It is a junction number, because it is equal to n+sod(n) for n = 981764896 and 981764905.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245441237 + ... + 245441240.

Almost surely, 2^981764954 is an apocalyptic number.

981764954 is a deficient number, since it is larger than the sum of its proper divisors (490882480).

981764954 is a wasteful number, since it uses less digits than its factorization.

981764954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490882479.

The product of its digits is 2177280, while the sum is 53.

The square root of 981764954 is about 31333.1286979133. The cubic root of 981764954 is about 993.8843261113.

The spelling of 981764954 in words is "nine hundred eighty-one million, seven hundred sixty-four thousand, nine hundred fifty-four".