70683428 has 6 divisors (see below), whose sum is σ = 123696006. Its totient is φ = 35341712.

The previous prime is 70683427. The next prime is 70683449. The reversal of 70683428 is 82438607.

It can be written as a sum of positive squares in only one way, i.e., 69923044 + 760384 = 8362^2 + 872^2 .

It is a super-2 number, since 2×70683428² = 9992293987662368, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 70683391 and 70683400.

It is not an unprimeable number, because it can be changed into a prime (70683427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8835425 + ... + 8835432.

It is an arithmetic number, because the mean of its divisors is an integer number (20616001).

Almost surely, 2^70683428 is an apocalyptic number.

It is an amenable number.

70683428 is a deficient number, since it is larger than the sum of its proper divisors (53012578).

70683428 is a wasteful number, since it uses less digits than its factorization.

70683428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17670861 (or 17670859 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 70683428 is about 8407.3436946517. The cubic root of 70683428 is about 413.4654274880.

The spelling of 70683428 in words is "seventy million, six hundred eighty-three thousand, four hundred twenty-eight".