8961415 has 8 divisors (see below), whose sum is σ = 11004048. Its totient is φ = 7002240.

The previous prime is 8961409. The next prime is 8961419. The reversal of 8961415 is 5141698.

8961415 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 8961415 - 2⁵ = 8961383 is a prime.

It is a Duffinian number.

8961415 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8961419) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20626 + ... + 21055.

It is an arithmetic number, because the mean of its divisors is an integer number (1375506).

Almost surely, 2^8961415 is an apocalyptic number.

8961415 is a deficient number, since it is larger than the sum of its proper divisors (2042633).

8961415 is a wasteful number, since it uses less digits than its factorization.

8961415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41729.

The product of its digits is 8640, while the sum is 34.

The square root of 8961415 is about 2993.5622592490. The cubic root of 8961415 is about 207.7106970985.

It can be divided in two parts, 89 and 61415, that added together give a square (61504 = 248²).

The spelling of 8961415 in words is "eight million, nine hundred sixty-one thousand, four hundred fifteen".