70406398 has 4 divisors (see below), whose sum is σ = 105609600. Its totient is φ = 35203198.

The previous prime is 70406359. The next prime is 70406417. The reversal of 70406398 is 89360407.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 89360407 = 43 ⋅2078149.

It is a congruent 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, 17601598 + ... + 17601601.

It is an arithmetic number, because the mean of its divisors is an integer number (26402400).

Almost surely, 2^70406398 is an apocalyptic number.

70406398 is a deficient number, since it is larger than the sum of its proper divisors (35203202).

70406398 is a wasteful number, since it uses less digits than its factorization.

70406398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35203201.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 70406398 is about 8390.8520425521. The cubic root of 70406398 is about 412.9245543797.

The spelling of 70406398 in words is "seventy million, four hundred six thousand, three hundred ninety-eight".