9487961 has 4 divisors (see below), whose sum is σ = 10843392. Its totient is φ = 8132532.

The previous prime is 9487949. The next prime is 9487963. The reversal of 9487961 is 1697849.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1697849 = 823 ⋅2063.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9487961 is a prime.

It is a super-3 number, since 3×9487961³ (a number of 22 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (9487963) 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, 677705 + ... + 677718.

It is an arithmetic number, because the mean of its divisors is an integer number (2710848).

Almost surely, 2^9487961 is an apocalyptic number.

It is an amenable number.

9487961 is a deficient number, since it is larger than the sum of its proper divisors (1355431).

9487961 is a wasteful number, since it uses less digits than its factorization.

9487961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1355430.

The product of its digits is 108864, while the sum is 44.

The square root of 9487961 is about 3080.2533986671. The cubic root of 9487961 is about 211.7016763413.

The spelling of 9487961 in words is "nine million, four hundred eighty-seven thousand, nine hundred sixty-one".