39772090 has 8 divisors (see below), whose sum is σ = 71589780. Its totient is φ = 15908832.

The previous prime is 39772087. The next prime is 39772093. The reversal of 39772090 is 9027793.

It is an interprime number because it is at equal distance from previous prime (39772087) and next prime (39772093).

It can be written as a sum of positive squares in 2 ways, for example, as 38825361 + 946729 = 6231^2 + 973^2 .

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

It is not an unprimeable number, because it can be changed into a prime (39772093) 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, 1988595 + ... + 1988614.

Almost surely, 2^39772090 is an apocalyptic number.

39772090 is a deficient number, since it is larger than the sum of its proper divisors (31817690).

39772090 is a wasteful number, since it uses less digits than its factorization.

39772090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3977216.

The product of its (nonzero) digits is 23814, while the sum is 37.

The square root of 39772090 is about 6306.5117140936. The cubic root of 39772090 is about 341.3444174240.

The spelling of 39772090 in words is "thirty-nine million, seven hundred seventy-two thousand, ninety".