78073479 has 12 divisors (see below), whose sum is σ = 123025032. Its totient is φ = 47317200.

The previous prime is 78073459. The next prime is 78073483. The reversal of 78073479 is 97437087.

It is not a de Polignac number, because 78073479 - 2¹¹ = 78071431 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78073459) 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, 394212 + ... + 394409.

It is an arithmetic number, because the mean of its divisors is an integer number (10252086).

Almost surely, 2^78073479 is an apocalyptic number.

78073479 is a deficient number, since it is larger than the sum of its proper divisors (44951553).

78073479 is a wasteful number, since it uses less digits than its factorization.

78073479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 788638 (or 788635 counting only the distinct ones).

The product of its (nonzero) digits is 296352, while the sum is 45.

The square root of 78073479 is about 8835.9198162953. The cubic root of 78073479 is about 427.3999930221.

The spelling of 78073479 in words is "seventy-eight million, seventy-three thousand, four hundred seventy-nine".