70915378 has 16 divisors (see below), whose sum is σ = 109612440. Its totient is φ = 34393216.

The previous prime is 70915373. The next prime is 70915387. The reversal of 70915378 is 87351907.

It can be written as a sum of positive squares in 4 ways, for example, as 68674369 + 2241009 = 8287^2 + 1497^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 70915378.

It is not an unprimeable number, because it can be changed into a prime (70915373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5676 + ... + 13192.

Almost surely, 2^70915378 is an apocalyptic number.

70915378 is a deficient number, since it is larger than the sum of its proper divisors (38697062).

70915378 is a wasteful number, since it uses less digits than its factorization.

70915378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7661.

The product of its (nonzero) digits is 52920, while the sum is 40.

The square root of 70915378 is about 8421.1268842121. The cubic root of 70915378 is about 413.9172004903.

The spelling of 70915378 in words is "seventy million, nine hundred fifteen thousand, three hundred seventy-eight".