6617478 has 16 divisors (see below), whose sum is σ = 15125760. Its totient is φ = 1890696.

The previous prime is 6617473. The next prime is 6617483. The reversal of 6617478 is 8747166.

It is an interprime number because it is at equal distance from previous prime (6617473) and next prime (6617483).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6617473) 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, 78738 + ... + 78821.

It is an arithmetic number, because the mean of its divisors is an integer number (945360).

Almost surely, 2^6617478 is an apocalyptic number.

6617478 is an abundant number, since it is smaller than the sum of its proper divisors (8508282).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6617478 is a wasteful number, since it uses less digits than its factorization.

6617478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157571.

The product of its digits is 56448, while the sum is 39.

The square root of 6617478 is about 2572.4459177989. The cubic root of 6617478 is about 187.7431795811.

The spelling of 6617478 in words is "six million, six hundred seventeen thousand, four hundred seventy-eight".