77416423 has 12 divisors (see below), whose sum is σ = 91403832. Its totient is φ = 65363760.

The previous prime is 77416421. The next prime is 77416429. The reversal of 77416423 is 32461477.

It is not a de Polignac number, because 77416423 - 2¹ = 77416421 is a prime.

It is a super-2 number, since 2×77416423² = 11986605100229858, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77416421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8508 + ... + 15073.

It is an arithmetic number, because the mean of its divisors is an integer number (7616986).

Almost surely, 2^77416423 is an apocalyptic number.

77416423 is a deficient number, since it is larger than the sum of its proper divisors (13987409).

77416423 is a wasteful number, since it uses less digits than its factorization.

77416423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23662 (or 23655 counting only the distinct ones).

The product of its digits is 28224, while the sum is 34.

The square root of 77416423 is about 8798.6602957496. The cubic root of 77416423 is about 426.1976332500.

The spelling of 77416423 in words is "seventy-seven million, four hundred sixteen thousand, four hundred twenty-three".