70622378 has 4 divisors (see below), whose sum is σ = 105933570. Its totient is φ = 35311188.

The previous prime is 70622353. The next prime is 70622389. The reversal of 70622378 is 87322607.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 87322607 = 1031 ⋅84697.

It can be written as a sum of positive squares in only one way, i.e., 66308449 + 4313929 = 8143^2 + 2077^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17655593 + ... + 17655596.

Almost surely, 2^70622378 is an apocalyptic number.

70622378 is a deficient number, since it is larger than the sum of its proper divisors (35311192).

70622378 is a wasteful number, since it uses less digits than its factorization.

70622378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35311191.

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 70622378 is about 8403.7121559463. The cubic root of 70622378 is about 413.3463550933.

The spelling of 70622378 in words is "seventy million, six hundred twenty-two thousand, three hundred seventy-eight".