67670434 has 16 divisors (see below), whose sum is σ = 109477368. Its totient is φ = 31185792.

The previous prime is 67670431. The next prime is 67670461. The reversal of 67670434 is 43407676.

It can be written as a sum of positive squares in 4 ways, for example, as 66341025 + 1329409 = 8145^2 + 1153^2 .

It is a junction number, because it is equal to n+sod(n) for n = 67670393 and 67670402.

It is not an unprimeable number, because it can be changed into a prime (67670431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20764 + ... + 23800.

Almost surely, 2^67670434 is an apocalyptic number.

67670434 is a deficient number, since it is larger than the sum of its proper divisors (41806934).

67670434 is a wasteful number, since it uses less digits than its factorization.

67670434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3909.

The product of its (nonzero) digits is 84672, while the sum is 37.

The square root of 67670434 is about 8226.2041063907. The cubic root of 67670434 is about 407.5050426566.

It can be divided in two parts, 676704 and 34, that multiplied together give a triangular number (23007936 = T₆₇₈₃).

The spelling of 67670434 in words is "sixty-seven million, six hundred seventy thousand, four hundred thirty-four".