7961217 has 8 divisors (see below), whose sum is σ = 11580000. Its totient is φ = 4824960.

The previous prime is 7961147. The next prime is 7961227. The reversal of 7961217 is 7121697.

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

It is not a de Polignac number, because 7961217 - 2¹⁶ = 7895681 is a prime.

It is a super-2 number, since 2×7961217² = 126761952242178, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 241249 = 7961217 / (7 + 9 + 6 + 1 + 2 + 1 + 7).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (7961227) 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, 120592 + ... + 120657.

It is an arithmetic number, because the mean of its divisors is an integer number (1447500).

Almost surely, 2^7961217 is an apocalyptic number.

It is an amenable number.

7961217 is a deficient number, since it is larger than the sum of its proper divisors (3618783).

7961217 is a wasteful number, since it uses less digits than its factorization.

7961217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241263.

The product of its digits is 5292, while the sum is 33.

The square root of 7961217 is about 2821.5628647967. The cubic root of 7961217 is about 199.6762846579.

The spelling of 7961217 in words is "seven million, nine hundred sixty-one thousand, two hundred seventeen".