738620690 has 8 divisors (see below), whose sum is σ = 1329517260. Its totient is φ = 295448272.

The previous prime is 738620671. The next prime is 738620693. The reversal of 738620690 is 96026837.

It can be written as a sum of positive squares in 2 ways, for example, as 701031529 + 37589161 = 26477^2 + 6131^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×738620690² = 1091121047392152200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (738620693) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36931025 + ... + 36931044.

Almost surely, 2^738620690 is an apocalyptic number.

738620690 is a deficient number, since it is larger than the sum of its proper divisors (590896570).

738620690 is a wasteful number, since it uses less digits than its factorization.

738620690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73862076.

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 738620690 is about 27177.5769707309. The cubic root of 738620690 is about 903.9418419068.

The spelling of 738620690 in words is "seven hundred thirty-eight million, six hundred twenty thousand, six hundred ninety".