68704451 has 8 divisors (see below), whose sum is σ = 71314320. Its totient is φ = 66110688.

The previous prime is 68704409. The next prime is 68704453. The reversal of 68704451 is 15440786.

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 68704451 - 2¹⁸ = 68442307 is a prime.

It is a super-2 number, since 2×68704451² = 9440603174422802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68704453) 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, 5045 + ... + 12761.

It is an arithmetic number, because the mean of its divisors is an integer number (8914290).

Almost surely, 2^68704451 is an apocalyptic number.

68704451 is a deficient number, since it is larger than the sum of its proper divisors (2609869).

68704451 is a wasteful number, since it uses less digits than its factorization.

68704451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8053.

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 68704451 is about 8288.8148127462. The cubic root of 68704451 is about 409.5701443687.

The spelling of 68704451 in words is "sixty-eight million, seven hundred four thousand, four hundred fifty-one".