70978346 has 8 divisors (see below), whose sum is σ = 106709184. Its totient is φ = 35408620.

The previous prime is 70978309. The next prime is 70978361. The reversal of 70978346 is 64387907.

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

It is a junction number, because it is equal to n+sod(n) for n = 70978297 and 70978306.

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, 39170 + ... + 40941.

It is an arithmetic number, because the mean of its divisors is an integer number (13338648).

Almost surely, 2^70978346 is an apocalyptic number.

70978346 is a deficient number, since it is larger than the sum of its proper divisors (35730838).

70978346 is a wasteful number, since it uses less digits than its factorization.

70978346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80556.

The product of its (nonzero) digits is 254016, while the sum is 44.

The square root of 70978346 is about 8424.8647466888. The cubic root of 70978346 is about 414.0396742922.

The spelling of 70978346 in words is "seventy million, nine hundred seventy-eight thousand, three hundred forty-six".