1394992937 has 4 divisors (see below), whose sum is σ = 1502300100. Its totient is φ = 1287685776.

The previous prime is 1394992933. The next prime is 1394992943. The reversal of 1394992937 is 7392994931.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 502835776 + 892157161 = 22424^2 + 29869^2 .

It is not a de Polignac number, because 1394992937 - 2² = 1394992933 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1394992933) 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, 53653562 + ... + 53653587.

It is an arithmetic number, because the mean of its divisors is an integer number (375575025).

Almost surely, 2^1394992937 is an apocalyptic number.

It is an amenable number.

1394992937 is a deficient number, since it is larger than the sum of its proper divisors (107307163).

1394992937 is a wasteful number, since it uses less digits than its factorization.

1394992937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107307162.

The product of its digits is 3306744, while the sum is 56.

The square root of 1394992937 is about 37349.6042415445. The cubic root of 1394992937 is about 1117.3536951769.

The spelling of 1394992937 in words is "one billion, three hundred ninety-four million, nine hundred ninety-two thousand, nine hundred thirty-seven".