670761694 has 16 divisors (see below), whose sum is σ = 1040472576. Its totient is φ = 323976600.

The previous prime is 670761691. The next prime is 670761697. The reversal of 670761694 is 496167076.

670761694 = T₂₁₁₄₅ + T₂₁₁₄₆ + T₂₁₁₄₇.

It is an interprime number because it is at equal distance from previous prime (670761691) and next prime (670761697).

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670761691) 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, 25929 + ... + 44875.

It is an arithmetic number, because the mean of its divisors is an integer number (65029536).

Almost surely, 2^670761694 is an apocalyptic number.

670761694 is the 21147-th centered triangular number.

670761694 is a deficient number, since it is larger than the sum of its proper divisors (369710882).

670761694 is a wasteful number, since it uses less digits than its factorization.

670761694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19551.

The product of its (nonzero) digits is 381024, while the sum is 46.

The square root of 670761694 is about 25899.0674349483. The cubic root of 670761694 is about 875.3654828015.

The spelling of 670761694 in words is "six hundred seventy million, seven hundred sixty-one thousand, six hundred ninety-four".