1038750397 has 4 divisors (see below), whose sum is σ = 1039698396. Its totient is φ = 1037802400.

The previous prime is 1038750373. The next prime is 1038750413. The reversal of 1038750397 is 7930578301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7930578301 = 1097 ⋅7229333.

It can be written as a sum of positive squares in 2 ways, for example, as 134304921 + 904445476 = 11589^2 + 30074^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1038750397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1038750347) 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, 472354 + ... + 474547.

It is an arithmetic number, because the mean of its divisors is an integer number (259924599).

Almost surely, 2^1038750397 is an apocalyptic number.

It is an amenable number.

1038750397 is a deficient number, since it is larger than the sum of its proper divisors (947999).

1038750397 is an equidigital number, since it uses as much as digits as its factorization.

1038750397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 947998.

The product of its (nonzero) digits is 158760, while the sum is 43.

The square root of 1038750397 is about 32229.6508978921. The cubic root of 1038750397 is about 1012.7534568848.

The spelling of 1038750397 in words is "one billion, thirty-eight million, seven hundred fifty thousand, three hundred ninety-seven".