1400350397 has 2 divisors, whose sum is σ = 1400350398. Its totient is φ = 1400350396.

The previous prime is 1400350373. The next prime is 1400350421. The reversal of 1400350397 is 7930530041.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (1400350373) and next prime (1400350421).

It can be written as a sum of positive squares in only one way, i.e., 1358217316 + 42133081 = 36854^2 + 6491^2 .

It is a cyclic number.

It is not a de Polignac number, because 1400350397 - 2¹⁶ = 1400284861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1400350327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700175198 + 700175199.

It is an arithmetic number, because the mean of its divisors is an integer number (700175199).

Almost surely, 2^1400350397 is an apocalyptic number.

It is an amenable number.

1400350397 is a deficient number, since it is larger than the sum of its proper divisors (1).

1400350397 is an equidigital number, since it uses as much as digits as its factorization.

1400350397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11340, while the sum is 32.

The square root of 1400350397 is about 37421.2559516647. The cubic root of 1400350397 is about 1118.7822641174.

The spelling of 1400350397 in words is "one billion, four hundred million, three hundred fifty thousand, three hundred ninety-seven".