78527949 has 8 divisors (see below), whose sum is σ = 107533920. Its totient is φ = 50936976.

The previous prime is 78527903. The next prime is 78527959. The reversal of 78527949 is 94972587.

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

It is not a de Polignac number, because 78527949 - 2⁸ = 78527693 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78527959) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 353619 + ... + 353840.

It is an arithmetic number, because the mean of its divisors is an integer number (13441740).

Almost surely, 2^78527949 is an apocalyptic number.

It is an amenable number.

78527949 is a deficient number, since it is larger than the sum of its proper divisors (29005971).

78527949 is a wasteful number, since it uses less digits than its factorization.

78527949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 707499.

The product of its digits is 1270080, while the sum is 51.

The square root of 78527949 is about 8861.5996862869. The cubic root of 78527949 is about 428.2276953209.

The spelling of 78527949 in words is "seventy-eight million, five hundred twenty-seven thousand, nine hundred forty-nine".