79494545 has 8 divisors (see below), whose sum is σ = 102731496. Its totient is φ = 58703616.

The previous prime is 79494491. The next prime is 79494551. The reversal of 79494545 is 54549497.

It can be written as a sum of positive squares in 4 ways, for example, as 5121169 + 74373376 = 2263^2 + 8624^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 79494545 - 2¹⁰ = 79493521 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 79494545.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 611432 + ... + 611561.

It is an arithmetic number, because the mean of its divisors is an integer number (12841437).

Almost surely, 2^79494545 is an apocalyptic number.

It is an amenable number.

79494545 is a deficient number, since it is larger than the sum of its proper divisors (23236951).

79494545 is a wasteful number, since it uses less digits than its factorization.

79494545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1223011.

The product of its digits is 907200, while the sum is 47.

The square root of 79494545 is about 8915.9713436058. The cubic root of 79494545 is about 429.9775452489.

The spelling of 79494545 in words is "seventy-nine million, four hundred ninety-four thousand, five hundred forty-five".