70349966 has 4 divisors (see below), whose sum is σ = 105524952. Its totient is φ = 35174982.

The previous prime is 70349959. The next prime is 70349977. The reversal of 70349966 is 66994307.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 66994307 = 283 ⋅236729.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17587490 + ... + 17587493.

It is an arithmetic number, because the mean of its divisors is an integer number (26381238).

Almost surely, 2^70349966 is an apocalyptic number.

70349966 is a deficient number, since it is larger than the sum of its proper divisors (35174986).

70349966 is a wasteful number, since it uses less digits than its factorization.

70349966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35174985.

The product of its (nonzero) digits is 244944, while the sum is 44.

The square root of 70349966 is about 8387.4886587107. The cubic root of 70349966 is about 412.8142027280.

The spelling of 70349966 in words is "seventy million, three hundred forty-nine thousand, nine hundred sixty-six".