372891061 has 2 divisors, whose sum is σ = 372891062. Its totient is φ = 372891060.

The previous prime is 372891059. The next prime is 372891083. The reversal of 372891061 is 160198273.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 269156836 + 103734225 = 16406^2 + 10185^2 .

It is a cyclic number.

It is not a de Polignac number, because 372891061 - 2¹ = 372891059 is a prime.

Together with 372891059, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 372891061.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (372891161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 186445530 + 186445531.

It is an arithmetic number, because the mean of its divisors is an integer number (186445531).

Almost surely, 2^372891061 is an apocalyptic number.

It is an amenable number.

372891061 is a deficient number, since it is larger than the sum of its proper divisors (1).

372891061 is an equidigital number, since it uses as much as digits as its factorization.

372891061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 372891061 is about 19310.3873860676. The cubic root of 372891061 is about 719.7704135537.

The spelling of 372891061 in words is "three hundred seventy-two million, eight hundred ninety-one thousand, sixty-one".