84077479 has 6 divisors (see below), whose sum is σ = 84539504. Its totient is φ = 83616840.

The previous prime is 84077473. The next prime is 84077491. The reversal of 84077479 is 97477048.

It is not a de Polignac number, because 84077479 - 2¹³ = 84069287 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 (84077473) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 150669 + ... + 151225.

Almost surely, 2^84077479 is an apocalyptic number.

84077479 is a deficient number, since it is larger than the sum of its proper divisors (462025).

84077479 is an frugal number, since it uses more digits than its factorization.

84077479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1385 (or 828 counting only the distinct ones).

The product of its (nonzero) digits is 395136, while the sum is 46.

The square root of 84077479 is about 9169.3772416670. The cubic root of 84077479 is about 438.0865237073.

The spelling of 84077479 in words is "eighty-four million, seventy-seven thousand, four hundred seventy-nine".