70869842 has 4 divisors (see below), whose sum is σ = 106304766. Its totient is φ = 35434920.

The previous prime is 70869833. The next prime is 70869893. The reversal of 70869842 is 24896807.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 40056241 + 30813601 = 6329^2 + 5551^2 .

It is a junction number, because it is equal to n+sod(n) for n = 70869793 and 70869802.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17717459 + ... + 17717462.

Almost surely, 2^70869842 is an apocalyptic number.

70869842 is a deficient number, since it is larger than the sum of its proper divisors (35434924).

70869842 is a wasteful number, since it uses less digits than its factorization.

70869842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35434923.

The product of its (nonzero) digits is 193536, while the sum is 44.

The square root of 70869842 is about 8418.4227738930. The cubic root of 70869842 is about 413.8285870384.

The spelling of 70869842 in words is "seventy million, eight hundred sixty-nine thousand, eight hundred forty-two".