70247402 has 4 divisors (see below), whose sum is σ = 105371106. Its totient is φ = 35123700.

The previous prime is 70247393. The next prime is 70247413. The reversal of 70247402 is 20474207.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20474207 = 13 ⋅1574939.

It can be written as a sum of positive squares in only one way, i.e., 70241161 + 6241 = 8381^2 + 79^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17561849 + ... + 17561852.

Almost surely, 2^70247402 is an apocalyptic number.

70247402 is a deficient number, since it is larger than the sum of its proper divisors (35123704).

70247402 is a wasteful number, since it uses less digits than its factorization.

70247402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35123703.

The product of its (nonzero) digits is 3136, while the sum is 26.

The square root of 70247402 is about 8381.3723220007. The cubic root of 70247402 is about 412.6134896791.

The spelling of 70247402 in words is "seventy million, two hundred forty-seven thousand, four hundred two".