8415961 has 8 divisors (see below), whose sum is σ = 8642304. Its totient is φ = 8191680.

The previous prime is 8415959. The next prime is 8415991. The reversal of 8415961 is 1695148.

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

It is a cyclic number.

It is not a de Polignac number, because 8415961 - 2¹ = 8415959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8415941) 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, 10956 + ... + 11698.

It is an arithmetic number, because the mean of its divisors is an integer number (1080288).

Almost surely, 2^8415961 is an apocalyptic number.

It is an amenable number.

8415961 is a deficient number, since it is larger than the sum of its proper divisors (226343).

8415961 is a wasteful number, since it uses less digits than its factorization.

8415961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1031.

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

The square root of 8415961 is about 2901.0275765666. The cubic root of 8415961 is about 203.4079415063.

The spelling of 8415961 in words is "eight million, four hundred fifteen thousand, nine hundred sixty-one".