9874945 has 4 divisors (see below), whose sum is σ = 11849940. Its totient is φ = 7899952.

The previous prime is 9874939. The next prime is 9874951. The reversal of 9874945 is 5494789.

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

It is an interprime number because it is at equal distance from previous prime (9874939) and next prime (9874951).

It can be written as a sum of positive squares in 2 ways, for example, as 1418481 + 8456464 = 1191^2 + 2908^2 .

It is a cyclic number.

It is not a de Polignac number, because 9874945 - 2³ = 9874937 is a prime.

It is an alternating number because its digits alternate between odd and even.

9874945 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 9874895 and 9874904.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 987490 + ... + 987499.

It is an arithmetic number, because the mean of its divisors is an integer number (2962485).

Almost surely, 2^9874945 is an apocalyptic number.

It is an amenable number.

9874945 is a deficient number, since it is larger than the sum of its proper divisors (1974995).

9874945 is a wasteful number, since it uses less digits than its factorization.

9874945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1974994.

The product of its digits is 362880, while the sum is 46.

The square root of 9874945 is about 3142.4425213518. The cubic root of 9874945 is about 214.5416230447.

The spelling of 9874945 in words is "nine million, eight hundred seventy-four thousand, nine hundred forty-five".