68290453 has 16 divisors (see below), whose sum is σ = 85538304. Its totient is φ = 52965360.

The previous prime is 68290451. The next prime is 68290457. The reversal of 68290453 is 35409286.

It is not a de Polignac number, because 68290453 - 2¹ = 68290451 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68290451) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15526 + ... + 19432.

It is an arithmetic number, because the mean of its divisors is an integer number (5346144).

Almost surely, 2^68290453 is an apocalyptic number.

It is an amenable number.

68290453 is a deficient number, since it is larger than the sum of its proper divisors (17247851).

68290453 is a wasteful number, since it uses less digits than its factorization.

68290453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4152.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 68290453 is about 8263.8037851827. The cubic root of 68290453 is about 408.7458263780.

It can be divided in two parts, 68 and 290453, that added together give a square (290521 = 539²).

The spelling of 68290453 in words is "sixty-eight million, two hundred ninety thousand, four hundred fifty-three".