65078623 has 2 divisors, whose sum is σ = 65078624. Its totient is φ = 65078622.

The previous prime is 65078543. The next prime is 65078653. The reversal of 65078623 is 32687056.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65078623 - 2¹³ = 65070431 is a prime.

It is a super-2 number, since 2×65078623² = 8470454343152258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65078653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32539311 + 32539312.

It is an arithmetic number, because the mean of its divisors is an integer number (32539312).

Almost surely, 2^65078623 is an apocalyptic number.

65078623 is a deficient number, since it is larger than the sum of its proper divisors (1).

65078623 is an equidigital number, since it uses as much as digits as its factorization.

65078623 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 65078623 is about 8067.1322661774. The cubic root of 65078623 is about 402.2346241401.

The spelling of 65078623 in words is "sixty-five million, seventy-eight thousand, six hundred twenty-three".