78377323 has 2 divisors, whose sum is σ = 78377324. Its totient is φ = 78377322.

The previous prime is 78377317. The next prime is 78377329. The reversal of 78377323 is 32377387.

It is a balanced prime because it is at equal distance from previous prime (78377317) and next prime (78377329).

It is a cyclic number.

It is not a de Polignac number, because 78377323 - 2⁵ = 78377291 is a prime.

It is a super-2 number, since 2×78377323² = 12286009521292658, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (78377329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39188661 + 39188662.

It is an arithmetic number, because the mean of its divisors is an integer number (39188662).

Almost surely, 2^78377323 is an apocalyptic number.

78377323 is a deficient number, since it is larger than the sum of its proper divisors (1).

78377323 is an equidigital number, since it uses as much as digits as its factorization.

78377323 is an evil number, because the sum of its binary digits is even.

The product of its digits is 148176, while the sum is 40.

The square root of 78377323 is about 8853.0968028143. The cubic root of 78377323 is about 427.9537227602.

The spelling of 78377323 in words is "seventy-eight million, three hundred seventy-seven thousand, three hundred twenty-three".