68616471 has 64 divisors (see below), whose sum is σ = 122674176. Its totient is φ = 33024000.

The previous prime is 68616461. The next prime is 68616473. The reversal of 68616471 is 17461686.

68616471 = 228² + 229² + ... + 601².

It is a happy number.

It is not a de Polignac number, because 68616471 - 2⁵ = 68616439 is a prime.

It is a super-3 number, since 3×68616471³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68616473) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 396541 + ... + 396713.

It is an arithmetic number, because the mean of its divisors is an integer number (1916784).

Almost surely, 2^68616471 is an apocalyptic number.

68616471 is a deficient number, since it is larger than the sum of its proper divisors (54057705).

68616471 is a wasteful number, since it uses less digits than its factorization.

68616471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312.

The product of its digits is 48384, while the sum is 39.

The square root of 68616471 is about 8283.5059606425. The cubic root of 68616471 is about 409.3952436506.

The spelling of 68616471 in words is "sixty-eight million, six hundred sixteen thousand, four hundred seventy-one".