68701491 has 6 divisors (see below), whose sum is σ = 99235500. Its totient is φ = 45800988.

The previous prime is 68701463. The next prime is 68701499. The reversal of 68701491 is 19410786.

It is not a de Polignac number, because 68701491 - 2⁵ = 68701459 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68701499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3816741 + ... + 3816758.

It is an arithmetic number, because the mean of its divisors is an integer number (16539250).

Almost surely, 2^68701491 is an apocalyptic number.

68701491 is a deficient number, since it is larger than the sum of its proper divisors (30534009).

68701491 is a wasteful number, since it uses less digits than its factorization.

68701491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7633505 (or 7633502 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 68701491 is about 8288.6362569484. The cubic root of 68701491 is about 409.5642624351.

The spelling of 68701491 in words is "sixty-eight million, seven hundred one thousand, four hundred ninety-one".