78903470 has 8 divisors (see below), whose sum is σ = 142026264. Its totient is φ = 31561384.

The previous prime is 78903469. The next prime is 78903481. The reversal of 78903470 is 7430987.

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

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3945164 + ... + 3945183.

It is an arithmetic number, because the mean of its divisors is an integer number (17753283).

Almost surely, 2^78903470 is an apocalyptic number.

78903470 is a deficient number, since it is larger than the sum of its proper divisors (63122794).

78903470 is a wasteful number, since it uses less digits than its factorization.

78903470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7890354.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 78903470 is about 8882.7625207477. The cubic root of 78903470 is about 428.9092057227.

The spelling of 78903470 in words is "seventy-eight million, nine hundred three thousand, four hundred seventy".